Identification device, identification system, identification method, and program

Abstract

An identifying device according to the present invention supports, with regard to products produced by a Build to Order system, processing of identifying which production process among a plurality of production processes for producing products is desirable for articles regarding which the production process thereof is completed to be taken as semi-finished products. The identifying device includes: a calculating means for finding management costs for semi-finished products and management costs for products in a case in which, with respect to each production process for producing products identified on the basis of production process information including information identifying contents of the production process, a goods-in-process at a stage of having completed that production process is taken as a semi-finished product, on the basis of shipping record information indicating a record of shipping the product and production plan information indicating a production plan of the product; an identifying means for comparing found management costs of the respective production processes and identifying a production process that satisfies a criterion in which a management cost is set in advance; and an output means for outputting the production process identified by the identifying means.

Description

[Technical Field]

[0001] The present disclosure relates to a specifying device, a specifying system, a specifying method, and a program. [Background technology]

[0002] The configure-to-order (CTO) method is known as a method for improving the efficiency of production activities. This method involves producing and storing semi-finished products based on a forecast in advance, and then using the semi-finished products to produce finished products when an order is received from a customer. Patent Document 1 discloses a method for generating a bill of materials in consideration of the characteristics of demand and parts, in order to realize a production method using semi-finished products that is less susceptible to the effects of demand fluctuations and procurement delays. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-146271 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, the scope of semi-finished products used in the CTO method has had to be determined manually from various perspectives, and no clear determination method has been established. The technology described in Patent Document 1 defines semi-finished products from the perspective of demand fluctuations and procurement stagnation, but does not clearly identify the scope of semi-finished products in terms of the production process, such as the extent to which a process must be completed before it can be considered semi-finished. Furthermore, the technology described in Patent Document 1 does not take into account inventory management costs, or in other words, management costs. For example, the storage costs required to store inventory, specifically, insufficient storage space, can lead to a stagnation of production activities. Therefore, in order to prevent stagnation of production activities, support is needed to more appropriately identify which production processes should be completed before semi-finished products can be considered.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide an identification device, identification system, identification method, and program that more appropriately identify which production processes have been completed and which items are desirable to be treated as semi-finished products. [Means for solving the problem]

[0006] In order to achieve the above object, the specific device according to the present disclosure , made 1. A specifying device for supporting a process of specifying which of a plurality of production processes for producing a product is desirable to be a semi-finished product, the device comprising: a calculation means; and a specifying means. and The calculation method is , made For each production process for producing a product, the management cost of the semi-finished product and the management cost of the finished product are calculated based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product, when the work in progress at the stage when the production process is completed is considered to be semi-finished product. The specifying means compares the calculated management costs for each production process and specifies the production process whose management cost meets a preset standard. 。 [Effects of the Invention]

[0007] According to the present disclosure, it is possible to determine which production processes are desirable for semi-finished products by taking into consideration the management costs of semi-finished products and finished products. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the configuration of a semi-finished product determination support system according to an embodiment. [Figure 2] FIG. 1 is a diagram illustrating an example of a functional configuration of a semi-finished product determination support device according to an embodiment. [Figure 3] FIG. 10 is a diagram showing an example of a performance table stored in a storage unit of a semi-finished product determination support device according to an embodiment; [Figure 4] FIG. 10 is a diagram showing an example of a production process table stored in a storage unit of a semi-finished product determination support device according to an embodiment. [Figure 5]FIG. 10 is a diagram showing an example of a shipping plan table stored in a storage unit of a semi-finished product determination support device according to an embodiment. [Figure 6] FIG. 10 is a diagram showing an example of a fluctuation rate table stored in a storage unit of a semi-finished product determination support device according to an embodiment. [Figure 7] FIG. 10 is a diagram showing an example of inventory quantity data stored in a storage unit of a semi-finished product determination support device according to an embodiment. [Figure 8] FIG. 10 is a diagram showing an example of a storage area table stored in a storage unit of a semi-finished product determination support device according to an embodiment; [Figure 9] FIG. 10 is a diagram showing an example of inventory area data stored in a storage unit of a semi-finished product determination support device according to an embodiment; [Figure 10] FIG. 1 is a diagram illustrating an example of a hardware configuration of a semi-finished product determination support device according to an embodiment. [Figure 11] 1 is a flowchart showing a semi-finished product information output process according to an embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a semi-finished product determination support device, a semi-finished product determination support system, a semi-finished product determination support method, and a program according to the present embodiment will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings are designated by the same reference numerals.

[0010] (Embodiment) The configuration of a semi-finished product determination support system 100 according to an embodiment will be described with reference to FIG. 1. The semi-finished product determination support system 100 is a system that identifies which of multiple production processes for producing a product should be considered as a semi-finished product, for a product produced using a configure-to-order (CTO) system. This system produces and stores semi-finished products based on a forecast, and then uses the semi-finished products to produce a finished product. In this embodiment, semi-finished products refer to work-in-progress products produced based on a forecast. Semi-finished products can be stored for a certain period of time. The semi-finished product determination support system 100 includes a semi-finished product determination support device 10, which is an example of an identification device that identifies which production process should be considered as a semi-finished product; a storage device 30 that stores various information such as shipping records and shipping plans; and a user terminal 40 used by a user. Products produced in this embodiment are also referred to as "target products." The semi-finished product determination support system 100 is also an example of an identification system according to the present disclosure.

[0011] The storage device 30 is configured by a server device and includes a shipping performance information storage unit 301 that stores information related to shipping performance, a production process information storage unit 302 that stores information related to the production process, and a shipping plan information storage unit 303 that stores information related to the shipping plan. The shipping record information storage unit 301 stores shipping record information of products. The shipping record information includes a target month indicating the target month for the number of shipping records, and the number of shipping records for the target month.

[0012] The production process information storage unit 302 stores production process information including information indicating the content of each of a plurality of production processes. The production process information includes the process number, process name, manufacturing lead time, and information indicating whether or not the product can be stored as a semi-finished product. "Manufacturing lead time" refers to the lead time for each process, and means the time required from the start to the end of each process. The lead time is also simply referred to as "LT."

[0013] The shipment plan information storage unit 303 stores information indicating a product shipment plan. The shipment plan information includes information indicating a target year and month indicating the target year and month for which the planned shipment quantity or actual shipment quantity is, actual shipments for the target year and month, the shipment plan for the target year and month, and a shipment plan at a point in time going back from the target year and month. Details will be described later. The shipment plan information is an example of production plan information related to the present disclosure.

[0014] The storage device 30 is connected to an in-house network NW, and the information is updated in accordance with the progress of business in multiple departments within the company. The storage device 30 may be configured as a single device or may be configured as multiple storage areas distributed in a distributed manner.

[0015] The semi-finished product determination support device 10 is configured with a computer device. In response to instructions from a user terminal 40, the semi-finished product determination support device 10 processes the shipping record information, production process information, and shipping plan information stored in the storage device 30 to determine the numerical values ​​necessary to identify which of the multiple production processes is desirable as a semi-finished product after completion. For example, when identifying the optimal semi-finished product as of April 2022, the semi-finished product determination support device 10 calculates the average shipping quantity indicating the average of the shipping record quantities over a certain period of the past, for example, the 24 months from April 2020 to March 2021 over two years, the planned fluctuation rate indicating the rate at which the shipping plan quantity prior to the shipping time fluctuates relative to the shipping record quantities, and the planned fluctuation rate corresponding to the shipping plan used for each of the multiple production processes. Details will be described later. Furthermore, the semi-finished product determination support device 10 uses the calculated average shipping quantity and planned fluctuation rate to determine the inventory quantities of semi-finished products and finished products when intermediate products in a state where each of the multiple production processes has been completed are considered semi-finished products. Furthermore, the semi-finished product determination support device 10 uses the determined inventory quantities of semi-finished products and finished products to determine the inventory storage area required to store the inventory, which is the total storage area for semi-finished products and finished products. Furthermore, the semi-finished product determination support device 10 presents a process that indicates the minimum inventory storage area. This makes it possible to support the identification of which production process has been completed and which products should be determined to be semi-finished products as of April 2022, from the perspective of the required storage area. Details will be described later. The semi-finished product determination support device 10 is an example of an identification device according to the present disclosure.

[0016] The user terminal 40 is configured by a terminal device. The user terminal 40 is connected to the semi-finished product determination support device 10 via the in-house network NW and gives instructions to the semi-finished product determination support device 10. In response to the instructions, the semi-finished product determination support device 10 calculates the inventory quantity of semi-finished products and finished products, and the total area of ​​the inventory storage area of ​​the semi-finished products and finished products.

[0017] Next, the functional configuration of the semi-finished product determination support device 10 will be described with reference to FIG. As shown in FIG. 2, the semi-finished product determination support device 10 includes an information acquisition unit 11 that acquires actual shipping information, production process information, and shipping plan information, a shipping quantity calculation unit 12 that calculates the average shipping quantity of the product to be shipped, a used shipping plan that indicates which shipping plan point before the shipping time to use and fluctuation rate information including the planned fluctuation rate corresponding to the used shipping plan, an inventory quantity calculation unit 14 that calculates the inventory quantities of semi-finished products and finished products, an inventory area calculation unit 15 that calculates the area of ​​the inventory to be stored, a semi-finished product determination unit 16 that determines which intermediate products have completed which processes to consider as semi-finished products, a semi-finished product information output unit 17 that transmits information of the determined semi-finished products to a user terminal 40, and a memory unit 26 that stores information necessary for determining semi-finished products from the perspective of the area required to store the inventory.

[0018] The memory unit 26 stores a performance table 261 that stores performance information indicating the number of shipped products, a production process table 262 that stores process numbers, manufacturing lead times, etc., a shipping plan table 263 that stores shipping plan information including the planned number of shipments, a used shipping plan that indicates which shipping plan from which point before the shipping time to use is to be used, and a fluctuation rate table 264 that stores fluctuation rate information including the planned fluctuation rate corresponding to the used shipping plan, inventory quantity data 265 that stores the inventory quantity calculated by the inventory quantity calculation unit 14, a storage area table 266 that stores storage area information including the area per lot when storing semi-finished products or finished products in lot units, and inventory area data 267 that stores the inventory area that indicates the area of ​​the inventory calculated by the inventory area calculation unit 15. The memory unit 26 is an example of a storage means according to the present disclosure.

[0019] The actual result table 261 shown in FIG. 2 is a table that associates target years and months, indicating which years and months the actual shipment numbers refer to, with the actual shipment numbers for the target years and months, as exemplified in FIG. 3. The actual result table 261 also stores an average number, indicating the average number of products shipped. FIG. 3 shows an example of the actual result table 261. Specifically, the actual result table 261 is part of the shipment result data stored in the shipment result information storage unit 301 of the storage device 30. If the target year and month is April 2022, for example, the actual result table 261 shows the actual shipment numbers for each month of the target product over a recent fixed period, for example, from April 2020 to March 2021 over a two-year period. The period in the past and the length of the fixed period can be set as appropriate. The average number of units in the storage device 30 is stored as a value calculated by the shipment number calculation unit 12.

[0020] The production process table 262 shown in FIG. 2 is a table that associates the process number of the target product's production process with the process name, manufacturing lead time, and "possible" or "not possible" indicating whether the target product can be stored as a semi-finished product, as exemplified in FIG. 4. The production process table 262 contains information about a specific target product (hereinafter, the target product) stored in the production process information storage unit 302 of the storage device 30. In this embodiment, the target product is completed through processes 1 to 5. In addition to the processing at each process, there is also a delay while waiting for the next process. Therefore, "delayed" is displayed instead of the process number between processes where delays may occur, or when the product is awaiting shipment after completion. Examples of products that cannot be stored as semi-finished products include when protective parts on the board have deteriorated significantly due to storage before installation, or when the product is unstable and cannot stand on its own before the screw tightening process after assembly. In this embodiment, storage as semi-finished products is not possible in process 3, "pre-processing."

[0021] The sequence of events leading up to the shipment of the target product is as follows: process 1 is the manufacture of "substrate 1," with a holdup immediately after process 1; process 2 is the manufacture of "substrate 2," with a holdup immediately after process 2; process 3 is "pre-processing," with a holdup immediately after process 3; process 4 is "main body assembly," with a holdup immediately after process 4; process 5 is "packaging," which completes the target product, with a holdup awaiting shipment immediately after process 5, and then shipment. Note that "pre-processing" refers to the assembly of parts and processing that prepares the main body for assembly. For example, this includes attaching frame parts to the substrate and pre-assembling main body sheet metal parts. In this embodiment, all processes from process 1 to process 5 are performed at the same production site A, and all holdups also occur at the same production site A. In other words, processes from process 1 to the shipment of the target product are performed at the same production site A.

[0022] Furthermore, the production process table 262 indicates the production LT for each process and retention period. For example, in process 1 "Board 1," it takes "one month" to manufacture one "Board 1." The "retention" between process 1 and process 2 is waiting for processing in the next process 2, and takes 0.1 months (approximately 3 days). Note that, until the product is completed, in addition to the production LT for each process and retention period, it is necessary to take into account the production planning lead time, which indicates the LT for creating a production plan. The production planning LT is the time required to create a production plan for each process based on shipping plan information. In this embodiment, the production planning LT is 0.5 months (approximately 15 days).

[0023] The shipping plan table 263 shown in FIG. 2 is a table that associates the shipping year and month of a product with the actual shipping quantity and the planned shipping quantity indicating the planned shipping quantity prior to the shipping month, as exemplified in FIG. 5. The shipping plan table 263 also stores a planned fluctuation rate indicating the percentage change in the planned shipping quantity prior to the shipping month relative to the actual shipping quantity. FIG. 5 shows an example of the shipping plan table 263. The shipping plan table 263 is part of the shipping plan data stored in the shipping plan information storage unit 303 of the storage device 30. If the target year and month is April 2022, for example, the data shows the planned shipping quantity for each month over the most recent fixed period, for example, from April 2020 to March 2021 over two years. Note that it is desirable for the fixed period to match the fixed period in the actual result table 261.

[0024] In the example of FIG. 5, the shipping plan table 263 indicates, for each month in fiscal 2020 and fiscal 2021, the actual shipment quantity, the scheduled shipment quantity for the month of shipment, the scheduled shipment quantity one month before the month of shipment, the scheduled shipment quantity two months before the month of shipment, the scheduled shipment quantity three months before the month of shipment, the scheduled shipment quantity four months before the month of shipment, and the scheduled shipment quantity five months before the month of shipment. Note that in this embodiment, the production confirmation time for confirming the production of the target product is five months before the month in which the product is shipped. The planned fluctuation rate stores a numerical value calculated by the fluctuation rate information calculation unit 13, which will be described in detail below.

[0025] In the shipping plan table 263, taking April 2020 as an example, the planned number of units to be shipped five months prior to April 2020 was 98 units, but the actual number of units shipped in April 2020 was 50 units.

[0026] The fluctuation rate table 264 shown in Fig. 2 is a table that associates the process number, process name, required LT until shipment, production plan to be used, and fluctuation rate for each process for each manufacturing process of the target product, as exemplified in Fig. 6. The required LT until shipment, the production plan to be used, and the fluctuation rate for each process are calculated and stored by the fluctuation rate information calculation unit 13. Here, the required LT until shipment means the LT required until completion including each process, and is the sum of the LT for process processing and retention and the LT for production plan creation.

[0027] The fluctuation rate information calculation unit 13 calculates the required LT until the shipment of the target product based on the production process table 262 shown in FIG. 4. For example, in the case of process 2, the fluctuation rate information The calculation unit 13 calculates the LT required until shipment in process 2 by adding up the LT of "1" in process 2, the LT of "0.7" for the retention immediately after process 2, the LT of "0.2" in process 3, the LT of "0.5" for the retention immediately after process 3, the LT of "0.1" in process 4, the LT of "0.1" for the retention immediately after process 4, the LT of "0.1" in process 5, the LT of "0.4" for the retention immediately after process 5, and the LT for production plan creation of "0.5". The LT required until shipment in process 2 is 3.6 as shown in FIG. 6.

[0028] The fluctuation rate information calculation unit 13 rounds up the "LT required until shipment" value calculated for each process, calculates the plan from a point in time back the number of months equivalent to the rounded-up value as the "production plan to be used," and calculates the planned fluctuation rate corresponding to the "production plan to be used" as the fluctuation rate for each process. For process 2, the "LT required until shipment" is 3.6, and the "production plan to be used" is the plan from a point in time back the number of months equivalent to rounding up 3.6 to 4, in other words, the four-month-ahead plan, and the "fluctuation rate" is 241%, which corresponds to the planned fluctuation rate for the four-month-ahead plan, based on the shipping plan table 263 shown in Figure 5.

[0029] The inventory quantity data 265 shown in Fig. 2 is data indicating the semi-finished product inventory quantity, which indicates the inventory quantity of semi-finished products, and the finished product inventory quantity, which indicates the inventory quantity of finished products, for the process number and process name of the target product, as exemplified in Fig. 7. The semi-finished product inventory quantity and finished product inventory quantity for each process are stored as values ​​calculated by the inventory quantity calculation unit 14, and will be described in detail later.

[0030] The storage area table 266 shown in FIG. 2 is a table that associates the process number, the number of semi-finished products or finished products per lot, and the lot area indicating the area per lot, as exemplified in FIG. 8. In process 5 of the manufacturing process, the product is completed, so it is displayed as a finished product. The number of semi-finished products per lot refers to the number of stored semi-finished products, which indicates the number of semi-finished products stored per lot, for each process, when semi-finished products are stored in lot units. Furthermore, the number of products per lot refers to the number of stored products, which indicates the number of products stored per lot, when products are stored in lot units. The number of product storage warehouses stored per lot is one.

[0031] 2 is data indicating, for a process number or a finished product, the inventory area of ​​semi-finished products, the inventory area of ​​finished products, the total value of these inventory areas, and a determination result indicating the process with the smallest total value, as exemplified in Fig. 9. The inventory area of ​​semi-finished products, the inventory area of ​​finished products, and the total value of the inventory area are values ​​calculated by the inventory area calculation unit 15 and are stored. Details will be described later.

[0032] The information acquisition unit 11 shown in FIG. 2 acquires actual shipping information, production process information, and shipping plan information from the storage device 30. This acquisition is achieved by sending a transmission instruction from the information acquisition unit 11 to the storage device 30. The information acquisition unit 11 adds the actual shipping quantity of the target product to the actual result table 261 based on the acquired actual shipping information. Furthermore, the information acquisition unit 11 adds the process number, process name, production time limit, etc. to the production process table 262 based on the acquired production process information. Furthermore, the information acquisition unit 11 adds the actual shipping quantity, the scheduled shipping quantity for the month of shipping, the scheduled shipping quantity one month before the month of shipping, the scheduled shipping quantity two months before the month of shipping, etc. to the shipping plan table 263 based on the acquired shipping plan information.

[0033] The shipment quantity calculation unit 12 calculates the average number of units indicating the average of the actual shipment quantities based on the actual result table 261. In the example shown in Fig. 3, the actual shipment quantities for the 12 months of fiscal year 2020 and the 12 months of fiscal year 2021 are targeted, so the shipment quantity calculation unit 12 calculates the average of the actual shipment quantities for 24 months. Specifically, the shipment quantity calculation unit 12 calculates (50 + 24 + 41 + ... + 41 + 33) / 24 = 39.1666, rounds the calculated value to the nearest 100, and adds the resulting value, 39, to the actual result table 261 as the average number.

[0034] The fluctuation rate information calculation unit 13 calculates the planned fluctuation rate as of N months ago based on the shipping plan table 263. Specifically, the fluctuation rate information calculation unit 13 calculates the average of the scheduled shipment quantity or the actual shipment quantity for each row of the shipping plan table 263 shown in FIG. 5. The fluctuation rate information calculation unit 13 calculates the average planned fluctuation rate for the actual shipments as of N months ago by dividing the calculated average planned shipment quantity by the average actual shipment quantity. The fluctuation rate information calculation unit 13 adds the calculated average planned fluctuation rate to the "planned fluctuation rate" in the shipping plan table 263. Note that the average planned fluctuation rate five months ago is 280.851064%, and the average planned fluctuation rate four months ago is 240.638298%, and the values ​​obtained by rounding these values ​​are shown in the "planned fluctuation rate" in the shipping plan table 263.

[0035] Furthermore, the fluctuation rate information calculation unit 13 adds the process number, process name, required LT until shipment, the production plan to be used, and fluctuation rate to the fluctuation rate table 264 based on the production process table 262. As described above, the fluctuation rate information calculation unit 13 obtains the "required LT until shipment" for each process. 3 Based on the calculated "LT required until shipment," the "production plan to be used" and "variation rate" for each process are calculated and added.

[0036] The inventory quantity calculation unit 14 calculates the inventory quantities of semi-finished products and finished products based on the average shipment volume and the fluctuation rate. For example, in the case of process 2, the inventory quantity is calculated assuming that the intermediate products up to process 2 are semi-finished products. Here, a difference occurs between the start time of production of semi-finished products and the start time of production of products using semi-finished products. Specifically, the start time of production of semi-finished products is when production is confirmed, but the start time of production of products using semi-finished products is when the products that have completed a certain production process P are considered semi-finished products, which is the start time of the next process P+1, so there is a difference. When this difference in timing occurs, semi-finished product inventory and finished product inventory are generated respectively.

[0037] This section provides a specific example of the process by which the inventory storage area required to store the inventory of semi-finished products and the inventory of finished products is generated. If the intermediate products up to process 2 are considered semi-finished products, production up to process 2 is forecast based on a production plan based on the shipping schedule at the start of the production process. Considering a case where the average number of units shipped is 100 units based on the fluctuation rate table 264 in Figure 6, the planned fluctuation rate at the start of the production process is 281%, so forecast production of 281 units begins. Manufacturing up to the finished product begins at process 3, and a production plan is created using a shipping plan that indicates demand information different from the forecast production of semi-finished products. Since process 3 has a fluctuation rate of 124%, if the average number of units shipped is 100, a production plan is made to produce 124 units. At this time, semi-finished products not used in product manufacturing remain in inventory. Specifically, this is 281 - 124 = 157 units. Furthermore, since the final number of units shipped is 100, 24 units of finished products are generated as inventory, which requires an inventory storage area.

[0038] The inventory quantity of semi-finished products is the difference between the production quantity of semi-finished products and the production quantity of finished products, and can be calculated by subtracting the average production quantity of finished products from the average production quantity of semi-finished products. Inventory quantity of semi-finished products = Average production quantity of semi-finished products - Average production quantity of finished products = Average shipment quantity × (fluctuation rate at production confirmation - fluctuation rate of next process) The inventory quantity of a product is the difference between the number of units produced and the actual shipments of the product, and is calculated by subtracting the average shipment quantity from the average production quantity of the product. Product inventory quantity = average production quantity - average shipment quantity = Average number of shipments × Fluctuation rate of next process – Average number of shipments

[0039] In this embodiment, for example, if the item that has completed process 1 is a semi-finished product, the stock quantity calculation unit 14 calculates the semi-finished product stock quantity based on the fluctuation rate table 264 using the following formula. Semi-finished product inventory quantity = average shipment quantity × (planned fluctuation rate five months in advance when production was confirmed - planned fluctuation rate of the production plan used in process 2) = 39 × (2.80851064 - 2.40638298) = 15.68298. The inventory quantity calculation unit 14 rounds the obtained value 15.68298 to the nearest whole number, obtains the value 16, and adds it to the inventory quantity data 265 as the semi-finished product inventory quantity for process 1.

[0040] Furthermore, based on the fluctuation rate table 264, the inventory quantity calculation unit 14 calculates the product inventory quantity using the following formula. Product inventory quantity = average shipment quantity × (planned fluctuation rate of the production plan used in process 2) - average shipment quantity = 39 × 2.40638298 - 39 = 54.848933. The inventory quantity calculation unit 14 rounds the obtained value 54.848933 to the nearest whole number, 55, and adds this value to the inventory quantity data 265 as the product inventory quantity for process 1. Note that the inventory quantity calculation unit 14 also calculates the inventory quantities of semi-finished products and finished products in other processes in the same way as for process 1 and adds these to the inventory quantity data 265.

[0041] The inventory area calculation unit 15, which calculates the area required to store inventory, determines the inventory storage area for semi-finished products and finished products based on the storage area table 266. In this embodiment, if intermediate products up to process 2 are considered semi-finished products, an average of 61 semi-finished products will be in stock. When storing semi-finished products in process 2, 50 products are grouped together and a space with an area of ​​100 is used, so two spaces with an area of ​​100 are required to store 61 products, or in other words, two lots. Similarly, in process 1, an average of 16 semi-finished products will be in stock. In process 1, 50 products are also grouped together and one space with an area of ​​100 is required, or in other words, one lot. Therefore, the inventory area for semi-finished products is 100 for process 1 and 200 for process 2. Note that the values ​​shown in the storage area table 266 are merely examples.

[0042] Furthermore, in this embodiment, when storing products, the number of products per lot is one, and a space with an area of ​​100 is used. Therefore, inventory area calculation unit 15 calculates the inventory storage area of ​​the products by multiplying the product inventory quantity for each process by 100. For example, in the case of process 1, the above-mentioned product inventory quantity of 54.848933 is multiplied by 100 to obtain a value of 5484.8933, but since the inventory quantity is an integer, the inventory area data 267 shows the rounded value "5485".

[0043] The inventory area calculation unit 15 adds the inventory storage areas of semi-finished products and finished products calculated for each production process to the inventory area data 267. The inventory area calculation unit 15 also calculates a total inventory storage area by adding the inventory storage area of ​​semi-finished products for each process and the inventory storage area of ​​finished products, and adds the calculated total to the inventory area data 267. The inventory area calculation unit 15 is an example of a calculation means according to the present disclosure.

[0044] The semi-finished product determination unit 16 determines the process with the smallest total inventory area based on the inventory area data 267. In this embodiment, the total area in process 2 is the smallest, so the semi-finished product determination unit 16 determines process 2. halfThe product determination unit 16 adds the determination result of the minimum required area when the intermediate product from process 1 to process 2 is treated as a semi-finished product to the inventory area data 267. The semi-finished product determination unit 16 is an example of a specifying means according to the present disclosure.

[0045] The semi-finished product information output unit 17 transmits the semi-finished product information stored in the inventory area data 267 of the storage unit 26 to the user terminal 40. The user terminal 40 outputs the semi-finished product information received from the semi-finished product determination support device 10 by screen display, audio output, etc. The semi-finished product information output unit 17 is an example of an output means according to the present disclosure.

[0046] The hardware configuration of the semi-finished product determination support device 10 will be described with reference to Fig. 10. As shown in Fig. 10, the semi-finished product determination support device 10 includes a temporary storage unit 101, a storage unit 102, a calculation unit 103, an input unit 104, a transmission / reception unit 105, and a display unit 106. The temporary storage unit 101, the storage unit 102, the input unit 104, the transmission / reception unit 105, and the display unit 106 are all connected to the calculation unit 103 via a BUS.

[0047] The calculation unit 103 includes, for example, a CPU (Central Processing Unit). The calculation unit 103 executes the processes of the shipment quantity calculation unit 12, the fluctuation rate information calculation unit 13, the inventory quantity calculation unit 14, the inventory area calculation unit 15, and the semi-finished product determination unit 16 of the semi-finished product determination support device 10 in accordance with the control program stored in the storage unit 102.

[0048] The temporary storage unit 101 includes, for example, a RAM (Random-Access Memory). The temporary storage unit 101 loads the control program stored in the storage unit 102 and is used as a work area for the calculation unit 103.

[0049] The storage unit 102 includes a nonvolatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disc - Random Access Memory), or a DVD-RW (Digital Versatile Disc - Rewritable). The storage unit 102 stores in advance a program for causing the calculation unit 103 to perform the processing of the semi-finished product determination support device 10, and also supplies data stored by this program to the calculation unit 103 in accordance with instructions from the calculation unit 103, and stores the data supplied from the calculation unit 103. The storage unit 102 includes a storage unit 26 that stores a performance table 261, a production process table 262, etc.

[0050] The input unit 104 is an interface device that connects input devices such as a keyboard, a pointing device, and a voice input device to the BUS. Information input by the user is supplied to the calculation unit 103 via the input unit 104. In a configuration in which the user directly inputs shipping performance information, production process information, etc. to the semi-finished product evaluation support device 10, the input unit 104 functions as the information acquisition unit 11.

[0051] The transmitting / receiving unit 105 is a network termination device or a wireless communication device that connects to the network, and a serial interface or a LAN (Local Area Network) interface that connects to them. The transmitting / receiving unit 105 functions as the information acquiring unit 11 and the semi-finished product information output unit 17.

[0052] The display unit 106 is a display device such as an LCD (Liquid Crystal Display), an organic EL (Electroluminescence) display, etc. In a configuration in which the semi-finished product evaluation support device 10 displays semi-finished product information on a screen, the display unit 106 functions as a semi-finished product information output unit 17.

[0053] The processing of the information acquisition unit 11, shipment quantity calculation unit 12, fluctuation rate information calculation unit 13, inventory quantity calculation unit 14, inventory area calculation unit 15, semi-finished product determination unit 16, semi-finished product information output unit 17, and memory unit 26 of the semi-finished product determination support device 10 shown in Figure 2 is executed by a control program using the temporary memory unit 101, calculation unit 103, memory unit 102, input unit 104, transmission / reception unit 105, display unit 106, etc. as resources.

[0054] Next, a semi-finished product information output process for presenting the semi-finished product evaluation results executed by the semi-finished product evaluation support device 10 will be described with reference to the flowchart of FIG.

[0055] As a premise, shipping performance information indicating product shipping performance, production process information indicating information at each process, and shipping plan information indicating product shipping plans are registered and updated daily in shipping performance information storage unit 301, production process information storage unit 302, and shipping plan information storage unit 303, respectively, by systems located in various departments within the company. When a user wishes to obtain a semi-finished product assessment result from the perspective of the storage area required for inventory of semi-finished products and finished products, the user operates his / her own user terminal 40 to specify the product to be identified, the time period to be identified, and the fixed period, and instructs the semi-finished product assessment support device 10 to start the semi-finished product information output process shown in Fig. 11. In this example, for example, the time period to be identified is specified as April 2022, and the fixed period is specified as two years.

[0056] When the process starts, the information acquisition unit 11 accesses the storage device 30 and acquires shipping performance information (step S11).

[0057] The information acquisition unit 11 expands the shipping performance information acquired from the storage device 30 into the performance table 261 of the storage unit 26. More specifically, as illustrated in Fig. 3, the information acquisition unit 11 reads out the number of shipping performances for the target product for the target month and year in the most recent fixed period, and records it in the performance table 261. In this example, the number of shipping performances for 24 months from April 2020 to March 2021 is read out and expanded.

[0058] The shipment quantity calculation unit 12 calculates the average shipment quantity, which indicates the average of the shipment quantity, based on the shipment result data expanded in the result table 261 (step S12). In this example, the average shipment quantity for the 24 months from April 2020 to March 2021 is calculated. The shipment quantity calculation unit 12 adds the calculated average quantity to the result table 261 shown in FIG.

[0059] The information acquisition unit 11 accesses the storage device 30 and acquires the production process information and shipping plan information of the target product (step S13).

[0060] The information acquisition unit 11 expands the production process information acquired from the storage device 30 into the production process table 262 of the storage unit 26. More specifically, as illustrated in Fig. 4, the information acquisition unit 11 records the process number, the process name, the production LT for each process, and "possible" or "not possible" indicating whether the product can be stored as a semi-finished product for each process in the production process table 262. In addition, in the case of a holdup due to awaiting processing in the next process or a holdup due to awaiting shipment after the product is completed in process 5, the information acquisition unit 11 records "held" in the production process table 262 instead of the process number.

[0061] The information acquiring unit 11 loads the shipment plan information acquired from the storage device 30 into the shipment plan table 263 of the storage unit 26. More specifically, as illustrated in FIG. 5 , the information acquiring unit 11 records the actual shipment quantity, the scheduled shipment quantity for the month of shipment, and the scheduled shipment quantity for the month prior to the month of shipment in the shipment plan table 263. In this embodiment, the timing for confirming production of the target product is five months prior to the month of product shipment, so the information acquiring unit 11 records the scheduled shipment quantity one month prior to the month of shipment, the scheduled shipment quantity two months prior to the month of shipment, the scheduled shipment quantity three months prior to the month of shipment, the scheduled shipment quantity four months prior to the month of shipment, and the scheduled shipment quantity five months prior to the month of shipment in the shipment plan table 263. Note that confirming production of the product five months prior to the month of shipment is merely an example.

[0062] The fluctuation rate information calculation unit 13 calculates the LT required until shipment, the production plan to be used, and the planned fluctuation rate (step S14). The fluctuation rate information calculation unit 13 calculates the LT required until shipment. Based on the production process table 262, the fluctuation rate information calculation unit 13 calculates the LT required until shipment as the LT obtained by adding up the manufacturing LT until shipment and the production plan creation LT. In this embodiment, for example, if the item that has completed process 2 is a semi-finished product, the fluctuation rate information calculation unit 13 calculates the LT obtained by adding up the manufacturing LT from process 2 to the "stay" immediately after process 5 and the production plan creation LT of "0.5", and adds this to the fluctuation rate table 264.

[0063] Furthermore, the fluctuation rate information calculation unit 13 finds, for each process, the plan for the month before which is the rounded-up value of the found "LT required until shipment" as the production plan to be used, and adds it to the fluctuation rate table 264. For example, since the "LT required until shipment" for process 2 is 3.6, the fluctuation rate information calculation unit 13 uses the rounded-up value "4" and adds the four-month-ahead plan to the fluctuation rate table 264 as the "production plan to be used" for process 2.

[0064] The fluctuation rate information calculation unit 13 calculates the fluctuation rate based on the shipping plan table 263. Specifically, the fluctuation rate information calculation unit 13 calculates the planned fluctuation rate corresponding to the "production plan to be used" calculated for each process as the fluctuation rate for each process, and adds it to the fluctuation rate table 264. In this embodiment, in the case of process 2, the "production plan to be used" is the four-month-ahead plan, so the planned fluctuation rate 241% corresponding to the four-month-ahead plan in the shipping plan table 263 is calculated as the fluctuation rate for process 2.

[0065] The inventory quantity calculation unit 14 calculates the inventory quantities of semi-finished products and finished products based on the calculated average shipment quantity and the fluctuation rate for each process (step S15). The inventory quantity calculation unit 14 calculates the inventory quantities of semi-finished products and finished products as described above. The inventory quantity calculation unit 14 adds the calculated inventory quantities of semi-finished products and finished products to the inventory quantity data 265 for each process. In this embodiment, since the pre-processing in process 3 cannot be stored as semi-finished products, the inventory quantities of semi-finished products and finished products are not shown in the inventory quantity data 265.

[0066] The inventory area calculation unit 15 calculates the inventory area required to store the inventory of semi-finished products and finished products (step S16). Based on the inventory quantity data 265 and the storage area table 266, the inventory area calculation unit 15 calculates the number of lots required for storage as described above, and multiplies the calculated number of lots by the area per lot to calculate the inventory storage area required for semi-finished products and the inventory storage area required for finished products for each process. The inventory area calculation unit 15 calculates the inventory storage area required for each process by adding the inventory storage area required for semi-finished products and the inventory storage area required for finished products calculated for each process. The inventory area calculation unit 15 adds the inventory storage area required for semi-finished products, the inventory storage area required for finished products, and the total area of ​​the inventory storage area required for semi-finished products and the inventory storage area required for finished products calculated for each process to the inventory area data 267.

[0067] The semi-finished product determination unit 16 determines the semi-finished products based on the inventory area data 267 (step S17). The semi-finished product determination unit 16 determines the process with the smallest total area in the inventory area data 267 and adds the determination result to the inventory area data 267. In this embodiment, since process 2 has the smallest total area, the semi-finished product determination unit 16 adds the determination result of the smallest required area when the intermediate products up to process 2 are considered as semi-finished products to the inventory area data 267.

[0068] The semi-finished product information output unit 17 transmits the semi-finished product information stored in the inventory area data 267 to the user terminal 40 (step S18), and the process then ends.

[0069] The user terminal 40 outputs the received semi-finished product information by displaying it on a screen, outputting it as voice, or the like.

[0070] As described above, in the semi-finished product determination support system 100 according to the embodiment, when an intermediate product whose process has been completed is considered a semi-finished product, the inventory quantity calculation unit 14 calculates a finished product inventory quantity indicating the number of finished products in stock and a semi-finished product inventory quantity indicating the number of semi-finished products in stock. Furthermore, the inventory area calculation unit 15 calculates the inventory storage area for storing the finished products and semi-finished product inventory based on the finished product inventory quantity and semi-finished product inventory quantity calculated by the inventory quantity calculation unit 14. Furthermore, the semi-finished product determination unit 16 determines the process that requires the smallest inventory storage area based on the inventory storage area calculated by the inventory area calculation unit 15. Therefore, it is possible to support appropriate identification of which of multiple production processes for producing a product is desirable as a semi-finished product after completion.

[0071] (Modification of the embodiment) In the embodiment, the number of steps is five, from step 1 to step 5, but the number of steps may vary depending on the target product and is arbitrary.

[0072] In the embodiment, the production process with the smallest inventory storage area among the inventory storage areas for each production process is identified, but it is also possible to set a standard for inventory storage area in advance and identify one or more production processes with an inventory storage area that meets the predetermined standard, for example, does not exceed the standard area.

[0073] In the above example, the optimal semi-finished products were found on a monthly basis, but the reference period can be any period, such as a year or a week. The fixed period can also be set arbitrarily, or a default setting can be used. It is also possible to identify semi-finished products for multiple periods at once. For example, it is possible to use weekly shipment performance data from May 2019 to February 2022 to identify the optimal semi-finished products on a weekly basis from the first week of April 2022 to the last week of March 2023.

[0074] In the embodiment, one production process that requires the minimum inventory storage area is specified, but it is also possible to specify and present a plurality of production processes, not limited to one.

[0075] The target product may be a manufacturing method that uses semi-finished products in multiple stages.

[0076] A product may be a material or ingredient. A semi-finished product may also be a material or ingredient, and is not limited to tangible objects, and may include liquids, powders, etc. Also, a number indicates the number or quantity. The unit of quantity is, for example, weight, volume, etc.

[0077] In the embodiment, the process from process 1 to the shipment of the target product is performed at the same production site A. However, these processes may be performed at different production sites. For example, the site where process 1 is processed and the product is stored immediately after process 1 may be production site A, and the site where process 2 is processed and the product is stored immediately after process 2 may be production site B. In this case, the storage cost per area may be calculated to identify the appropriate semi-finished product. In such a case, the storage cost per area may differ between sites A and B. In such a case, the storage cost per unit area may be multiplied by the area required for storage multiplied by the storage cost per unit area to calculate the sum of the storage cost of the semi-finished product and the storage cost of the finished product, and the total storage costs may be compared to identify the appropriate semi-finished product. Alternatively, various factors such as storage area, storage cost, management costs and labor, accident risk, transportation labor and costs, and lead time may be evaluated as costs, and the sum of the storage cost of the semi-finished product and the storage cost of the finished product may be calculated and the total storage costs may be compared to identify the appropriate semi-finished product. In this case, predicted changes in the base cost at a certain point in the future may be reflected in the evaluation.

[0078] In the embodiment, the shipment quantity calculation unit 12 calculates the average value of the shipment performance numbers, but is not limited to the average value and may use any representative value, for example, the median value of the shipment performance numbers.

[0079] In the embodiment, the information acquisition unit 11 acquires the shipping performance information, production process information, and shipping plan information by sending instructions to the storage device 30 to transmit shipping performance information, production process information, and shipping plan information, but the present disclosure is not limited to this. The storage device 30 may periodically transmit the shipping performance information, production process information, and shipping plan information to the semi-finished product determination support device 10 without following instructions from the semi-finished product determination support device 10.

[0080] Furthermore, the above hardware configuration and flowchart are merely examples and can be changed and modified as desired.

[0081] The core components of the processing of semi-finished product assessment support device 10, such as calculation unit 103, temporary storage unit 101, storage unit 102, input unit 104, transmission / reception unit 105, and display unit 106, can be realized using an ordinary computer system rather than a dedicated system. For example, a computer program for executing the above operations may be stored and distributed on a computer-readable recording medium such as a flexible disk, CD-ROM (Compact Disc - Read Only Memory), or DVD-ROM (Digital Versatile Disc - Read Only Memory), and the semi-finished product assessment support device 10 that executes the above processing may be configured by installing the computer program on a computer. Alternatively, the computer program may be stored in a storage device of a server device on a communication network, such as the Internet, and downloaded by an ordinary computer system to configure semi-finished product assessment support device 10.

[0082] In addition, when the functions of the semi-finished product judgment support device 10 are realized by sharing the functions between an OS (Operating System) and an application program, or by collaboration between the OS and an application program, only the application program portion may be stored in a recording medium or storage device.

[0083] It is also possible to superimpose a computer program on a transport wave and provide it via a communication network. For example, the computer program may be posted on a bulletin board system (BBS) on the communication network and provided via the communication network. The computer program may then be started and executed under the control of an OS in the same way as other application programs, thereby enabling the above-mentioned processing to be performed.

[0084] Although the preferred embodiments have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims. (Appendix 1) 1. A device for assisting in a process of identifying which of a plurality of production processes for producing a product to be manufactured by a custom-made production method is desirable to be used as a semi-finished product, the device comprising: a calculation means for calculating, for each production process for producing the product specified based on production process information including information indicating the content of the production process, management costs of the semi-finished products and the finished products when the work in progress at the stage when the production process is completed is considered to be semi-finished products, based on shipping record information indicating the shipping record of the product and production plan information indicating the production plan of the product; a means for comparing the obtained management costs for each production process and identifying a production process whose management costs satisfy a predetermined standard; an output means for outputting information indicating the production process identified by the identification means; A specific device comprising: (Appendix 2) the production process information includes information for identifying a series of processes for manufacturing the product and information for identifying a lead time for each process, the production plan information includes information indicating a current production plan and information indicating a past production plan, The calculation means calculates, based on the production process information, the shipping record information, and the production plan information, For each of the production processes, the inventory numbers of semi-finished products and finished products are calculated when the work-in-progress at the stage when the production process is completed is treated as semi-finished products, and further, the management costs of the inventory numbers of semi-finished products and finished products are calculated. Specific device as described in Appendix 1. (Appendix 3) The management cost includes an inventory storage area required to store the inventory of the semi-finished products and the inventory of the finished products. Specific devices as described in Appendix 2. (Appendix 4) the specifying means specifies a production process that requires the smallest inventory storage area among the inventory storage areas for each production process. Specific devices as described in Appendix 3. (Appendix 5) The calculation means calculates a fluctuation rate indicating a rate of fluctuation of a planned shipment number indicating a scheduled shipment number before the time of the shipment relative to an actual shipment number at the time of the shipment, based on the production plan information. 5. The specific device of any one of appendices 2 to 4. (Appendix 6) the production process information further includes a manufacturing lead time required for each of the production process, a holdup period for waiting for processing in a process following the production process, and a holdup period for waiting for shipment of the completed product, and a production plan creation lead time indicating a period required for creating a production plan for each of the production processes based on the production plan information; the calculation means adds up the manufacturing lead times from the production process to the shipment, further adds the production plan creation lead time to the lead time obtained by the addition, and further rounds up the decimal points of the numerical value indicating the lead time obtained by the addition to obtain an integer value, thereby determining the fluctuation rate of the production plan from the number of months prior corresponding to the integer value as the fluctuation rate in the production process; Specific devices as described in Appendix 5. (Appendix 7) The production process information further includes a production confirmation time indicating a time when production of the product is confirmed, the calculation means subtracts the fluctuation rate in the process subsequent to the production process from the fluctuation rate at the production confirmation time, multiplies the fluctuation rate obtained by the subtraction by the representative value of the number of actual shipments, and rounds off the value obtained by the multiplication to the nearest integer, thereby determining the number of semi-finished products in stock in the production process; Specific devices as described in Appendix 6. (Appendix 8) the calculation means multiplies the representative value of the actual shipment quantity by the fluctuation rate in the process next to the production process, subtracts the representative value from the value obtained by the multiplication, and rounds off the decimal point of the value obtained by the subtraction to obtain an integer value, which is determined as the product inventory quantity in the production process; Specific devices as described in Appendix 6. (Appendix 9) When the semi-finished products and the finished products are stored in lot units, the storage system further comprises a storage means for storing storage area information including a semi-finished product storage number indicating the number of semi-finished products stored for each lot, a finished product storage number indicating the number of finished products stored for each lot, and a lot area indicating the area per lot, the calculation means divides the numerical value obtained by the multiplication before rounding off by the number of semi-finished products stored, or divides the numerical value obtained by the subtraction before rounding off by the number of finished products stored, and rounds up any decimal points of the numerical value obtained by the division to obtain an integer value as the number of lots indicating the number of lots for storing the semi-finished products or the finished products, and multiplies the obtained number of lots by the lot area to obtain the inventory storage area for storing the semi-finished products or the finished products. Specific devices as described in Appendix 7 or 8. (Appendix 10) the calculation means calculates the inventory storage area for storing the inventory of the finished products and the semi-finished products by adding together an inventory storage area for storing the semi-finished products and an inventory storage area for storing the finished products. Specific devices as described in Appendix 9. (Appendix 11) A specific device according to any one of Supplementary Notes 1 to 10 and a storage device, the storage device stores the production process information, the shipping record information, and the production plan information; Specific system. (Appendix 12) Identifying which production process among a plurality of production processes for producing a product is desirable to be a semi-finished product; For each production process for producing the product, the management costs of the semi-finished product and the finished product when the work in progress at the stage when the production process is completed are considered to be semi-finished products are calculated based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product; The management costs for each production process are compared to identify the production process whose management costs meet the predetermined standard. Specific method. (Appendix 13) On the computer, Identifying which of a plurality of production processes for producing a product should be a semi-finished product; For each production process for producing the product, the management costs of the semi-finished product and the finished product when the work in progress at the stage when the production process is completed are considered to be semi-finished products are calculated based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product; The management costs for each production process are compared to identify the production process whose management costs meet the predetermined standard. A program that executes a process. [Explanation of symbols]

[0085] 10 Semi-finished product determination support device, 11 Information acquisition unit, 12 Shipment quantity calculation unit, 13 Fluctuation rate information calculation unit, 14 Inventory quantity calculation unit, 15 Inventory area calculation unit, 16 Semi-finished product determination unit, 17 Semi-finished product information output unit, 26 Memory unit, 30 Storage device, 40 User terminal, 100 Semi-finished product determination support system, 101 Temporary memory unit, 102 Memory unit, 103 Calculation unit, 104 Input unit, 105 Transmission / reception unit, 106 Display unit, 261 Actual results table, 262 Production process table, 263 Shipping plan table, 264 Fluctuation rate table, 265 Inventory quantity data, 266 Storage area table, 267 Inventory area data, 301 Shipping actual results information memory unit, 302 Production process information memory unit, 303 Shipping plan information memory unit.

Claims

1. A device for assisting in the process of identifying which of a plurality of production processes for producing a product should be treated as a semi-finished product, comprising: a calculation means for calculating, for each production process for producing the product, the management costs of the semi-finished products and the finished products when the work-in-progress at the stage when the production process is completed is regarded as the semi-finished products, based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product; a means for comparing the obtained management costs for each production process and identifying a production process whose management costs satisfy a predetermined standard; A specific device comprising:

2. the production process information including information indicating the content of the production process includes information specifying a series of processes for manufacturing the product and information specifying a lead time for each process, the production plan information includes information indicating a current production plan and information indicating a past production plan, The calculation means calculates, based on the production process information, the shipping record information, and the production plan information, For each of the production processes, the inventory numbers of semi-finished products and finished products are calculated when the work-in-progress at the stage when the production process is completed is treated as semi-finished products, and further, the management costs of the inventory numbers of semi-finished products and finished products are calculated. The identification device according to claim 1 .

3. The management cost includes an inventory storage area required to store the inventory of the semi-finished products and the inventory of the finished products. The identification device according to claim 2 .

4. the specifying means specifies a production process that requires the smallest inventory storage area among the inventory storage areas for each production process. The identification device according to claim 3 .

5. The calculation means calculates a fluctuation rate indicating a rate of fluctuation of a planned shipment number indicating a scheduled shipment number before the time of the shipment relative to an actual shipment number at the time of the shipment, based on the production plan information. The identification device according to any one of claims 2 to 4.

6. the production process information further includes a manufacturing lead time required for each of the production process, a holdup period for waiting for processing in a process following the production process, and a holdup period for waiting for shipment of the completed product, and a production plan creation lead time indicating a period required for creating a production plan for each of the production processes based on the production plan information; the calculation means adds up the manufacturing lead times from the production process to the shipment, further adds the production plan creation lead time to the lead time obtained by the addition, and further rounds up the decimal points of the numerical value indicating the lead time obtained by the addition to obtain an integer value, thereby determining the fluctuation rate of the production plan from the number of months prior corresponding to the integer value as the fluctuation rate in the production process; The identification device according to claim 5 .

7. The production process information further includes a production confirmation time indicating a time when production of the product is confirmed, the calculation means subtracts the fluctuation rate in the process subsequent to the production process from the fluctuation rate at the production confirmation time, multiplies the fluctuation rate obtained by the subtraction by the representative value of the number of actual shipments, and rounds off the value obtained by the multiplication to the nearest integer, thereby determining the number of semi-finished products in stock in the production process; The identification device according to claim 6 .

8. the calculation means multiplies the representative value of the actual shipment quantity by the fluctuation rate in the process next to the production process, subtracts the representative value from the value obtained by the multiplication, and rounds off the decimal point of the value obtained by the subtraction to obtain an integer value, which is determined as the product inventory quantity in the production process; The identification device according to claim 6 .

9. When the semi-finished products and the finished products are stored in lot units, the storage system further comprises a storage means for storing storage area information including a semi-finished product storage number indicating the number of semi-finished products stored for each lot, a finished product storage number indicating the number of finished products stored for each lot, and a lot area indicating the area per lot, the calculation means divides the numerical value obtained by the multiplication before rounding off by the number of semi-finished products stored, or divides the numerical value obtained by the subtraction before rounding off by the number of finished products stored, and rounds up any decimal points of the numerical value obtained by the division to obtain an integer value as the number of lots indicating the number of lots for storing the semi-finished products or the finished products, and multiplies the obtained number of lots by the lot area to obtain the inventory storage area for storing the semi-finished products or the finished products. The identification device according to claim 7 .

10. the calculation means calculates the inventory storage area for storing the inventory of the finished products and the semi-finished products by adding together an inventory storage area for storing the semi-finished products and an inventory storage area for storing the finished products. The identification device according to claim 9.

11. A device comprising: the specific device according to any one of claims 1 to 4; and a storage device; the storage device stores production process information including information indicating the content of the production process, the shipping record information, and the production plan information; Specific system.

12. A computer-implemented identification method, comprising: Identifying which of a plurality of production processes for producing a product should be a semi-finished product; For each production process for producing the product, the management costs of the semi-finished product and the finished product when the work in progress at the stage when the production process is completed are considered to be semi-finished products are calculated based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product; The management costs for each production process are compared to identify the production process whose management costs meet the predetermined standard. Specific method.

13. On the computer, Identifying which of a plurality of production processes for producing a product should be a semi-finished product; For each production process for producing the product, the management costs of the semi-finished product and the finished product when the work in progress at the stage when the production process is completed are considered to be semi-finished products are calculated based on shipping record information showing the shipping record of the product and production plan information showing the production plan of the product; The management costs for each production process are compared to identify the production process whose management costs meet the predetermined standard. A program that executes a process.

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