Gantt chart management device

Abstract

To provide a Gantt chart management device that improves the usability of Gantt charts. [Solution] The system includes a Gantt chart identification unit 31 that identifies a Gantt chart relating to the usage schedule of processing equipment used in the manufacture of a product, and a display unit 22 that displays the Gantt chart identified by the Gantt chart identification unit 31 on a display device. The display unit 22 displays the finalized Gantt chart, the Gantt chart of work results, and the operating status of the processing equipment for the same processing equipment 3 in a chronological order. The system also includes a Gantt chart identification unit 21 that identifies a Gantt chart relating to order information for the manufacture of a product, and a display unit 22 that displays the Gantt chart identified by the Gantt chart identification unit 21 on a display device. The display unit 22 displays the finalized Gantt chart and the Gantt chart of work results for the same order information in a chronological order.

Description

Technical Field

[0001] The present invention relates to a Gantt chart management device.

Background Art

[0002] As the background art of this technical field, there is Japanese Patent Application Laid-Open No. 2023-46958 (Patent Document 1). This publication states that "an equipment management device according to an aspect of the present invention includes an alternative candidate equipment information generation unit that generates equipment configuration information of an alternative candidate production line using an alternative equipment for a failed production equipment when a failure of any of a plurality of production equipment operating on a production line is detected, and generates an alternative configuration selection screen including the equipment configuration information of the alternative candidate production line and information indicating the production performance of each equipment configuration of the alternative candidate production line, and displays the screen on a display unit, and an alternative configuration selection unit that adopts the alternative candidate production line selected via the alternative configuration selection screen as an alternative production line." (See the abstract).

[0003] As another background art, there is Japanese Patent Application Laid-Open No. 2022-169081 (Patent Document 2). This publication states that "a distributed production planning and instruction device includes a storage unit that stores a production instruction serving as a work instruction for production elements including production equipment, production resources, and workers in a factory, production state information including the occurrence state of abnormalities of the production elements, and equipment-process relationship information that identifies other production elements that can alternatively implement each process implemented by the production elements; a plan change necessity determination unit that determines that no plan change is necessary when a production instruction can be complied with in consideration of the stop period of the production element caused by the abnormality when an abnormality occurs in the production instruction execution of the production element; a distributed planning range calculation unit that includes other production elements that can be alternatively implemented within the target range of replanning; and a distributed plan generation unit that replans the production instruction within the generated target range of replanning." (See the abstract).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] However, the technologies disclosed in Patent Documents 1 and 2 had room for improvement from the standpoint of making Gantt charts easier to use. Therefore, the object of the present invention is to provide a Gantt chart management device that can improve the usability of Gantt charts. [Means for solving the problem]

[0006] To solve the above problems, the present invention is used in the manufacture of products processing equipment The system includes a Gantt chart identification unit that identifies a Gantt chart relating to the usage schedule, and a display unit that displays the Gantt chart identified by the Gantt chart identification unit on a display device, wherein the display unit is identical to the processing equipment This is a Gantt chart management system that displays the finalized Gantt chart, the Gantt chart of actual work performed, and the resource utilization status in a chronological order and side by side. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a Gantt chart management device that can improve the usability of Gantt charts. Other issues, configurations, and effects not mentioned above will be clarified by the following description of the embodiments. [Brief explanation of the drawing]

[0008] [Figure 1] A block diagram showing the electrical connections of a Gantt chart management system, which is one embodiment of the present invention. [Figure 2] This is a block diagram showing the electrical connections of a Gantt chart management device. [Figure 3]This is a functional block diagram of the processes executed by the main memory in the Gantt chart management device. [Figure 4] This is a plan view showing an example of a screen displayed on a terminal device's display by a Gantt chart management system. [Figure 5] This is a plan view showing an example of a search result list for a different case, similar to Figure 4. [Figure 6] This is a plan view showing an example of a search result list for a different case, similar to Figure 4. [Figure 7] This is a plan view showing an example of a search result list for a different case, similar to Figure 4. [Figure 8] This is a plan view showing another example of a screen displayed on a terminal device's display by a Gantt chart management system. [Figure 9] This is a plan view showing another example of a screen displayed on a terminal device's display by a Gantt chart management system. [Figure 10] This is a plan view showing a comparison between the Gantt chart of the finalized plan and the Gantt chart of the actual results, as in the example in Figure 9. [Figure 11] This is a plan view showing a comparison between the Gantt chart of the finalized plan and the Gantt chart of the actual results, as in the example in Figure 9. [Figure 12] This is a plan view illustrating the other functions of the table in Figure 9. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a block diagram showing the electrical connections of a Gantt chart management system, which is one embodiment of the present invention. At the heart of this Gantt chart management system is the Gantt chart management device 1. The Gantt chart management device 1 is, for example, a device for managing work processes within a factory, and in this example, it is a server device. Of course, the Gantt chart management device 1 can be implemented as various types of computers, such as personal computers or tablets. In this example, the Gantt chart management device 1, which is a server device, is connected to one or more terminal devices 2 (display devices), such as personal computers, which view the data of the device and operate the device in various ways. In addition, one or more various processing devices 3 within the factory are connected to the Gantt chart management device 1. The processing devices 3 are resources used in industrial activities and are various devices used to manufacture products in the factory. The connections of these devices are made via a local area network 4 or the like, which is installed within the factory. In the context of industrial activity, "industry" refers to activities that produce material goods and services necessary for daily life. It is a general term encompassing agriculture, forestry, fisheries, mining, manufacturing, construction, transportation and communication, commerce, finance, insurance, and real estate. It also refers to work necessary for survival. The manufacturing and processing of products are examples of industrial activity.

[0010] FIG. 2 is a block diagram showing the electrical connection of the Gantt chart management device. The Gantt chart management device 1 includes a central processing unit 11, a main memory device 12, an auxiliary storage device 13, and a communication control device 14. The central processing unit 11 performs various calculations and executes various controls. The main memory device 12 is a storage device that serves as a work area for the central processing unit 11. The auxiliary storage device 13 is a storage medium and is a storage device that stores various programs and fixed data. In particular, the auxiliary storage device 13 stores a Gantt chart management program 15. This Gantt chart management program 15 is a program for the main memory device 12 to execute various processes described later. The Gantt chart management program 15 may be downloaded from the Internet or the like and set up in the auxiliary storage device 13, or may be read from a storage medium such as a DVD and set up in the auxiliary storage device 13. In the auxiliary storage device 13, a Gantt chart database (DB) 16 that accumulates data of various Gantt charts and a resource database (DB) 17 that accumulates information on each resource (described later) are constructed. The communication control device 14 communicates with the terminal device 2, the processing device 3, etc. via a local area network 4 or the like.

[0011] Incidentally, in Patent Documents 1 and 2, when using a Gantt chart for work management in a factory, there was room for improvement in terms of improving the usability of the Gantt chart, such as making the difference between the planning stage of work etc. and its execution status clearly visible. Therefore, below, an example of the display processing of a Gantt chart with good usability will be described.

[0012] FIG. 3 is a functional block diagram of the processing executed by the main memory device in the Gantt chart management device. Based on the Gantt chart management program 15, the main memory device 12 executes the functions of a Gantt chart specifying unit 21, a display unit 22, and an adjustment unit 23. The specific processing executed by each of these units will be described below.

[0013] FIG. 4 is a plan view showing an example of a screen displayed on the display of the terminal device by the Gantt chart management device. The Gantt chart specifying unit 21 of the Gantt chart management device 1 executes a function of specifying a Gantt chart regarding the usage schedule of resources used for manufacturing a product. In this example, the Gantt chart specifying unit 21 can search for a Gantt chart in the Gantt chart DB 16 by operating the terminal device 2 and display the result on the screen of the terminal device 2 by the information processing performed by the display unit 22. However, the present invention is not limited to this. For example, the display unit 22 may display a list of various Gantt charts registered in the Gantt chart DB 16 on the terminal device 2, and the user may select a desired Gantt chart from the list.

[0014] In FIG. 4, as search conditions 30, a display type 31, a production plan group 32, a process group 33, an item number 34, a manufacturing lot No. 35, a display period 36, and a reflection target 37 can be input as search conditions. In the display type 31, the type of the Gantt chart to be searched is input. In the production plan group 32, the group of products to be produced is input. The production plan group 32 is an essential input field. In the process group 33, the group of processes of the product to be produced is input. In the item number 34, the item of the product to be produced is input. In the manufacturing lot No. 35, the manufacturing lot No. of the product to be produced is input. In the display period 36, the start date and end date of the schedule period in the Gantt chart to be searched are input. The reflection target 37 is used to select whether the Gantt chart to be searched is a provisional registration 38 or a confirmed registration 39. This is also an essential input item. Provisional registration is a Gantt chart registered in a provisional state, and confirmed registration is a Gantt chart in which the processing of the product has been confirmed according to the schedule. By inputting search conditions in these fields and clicking the search button 41 a search result corresponding to the search conditions is displayed in the search result list 42. Note that the display content of the search result list 42 can be cleared by clicking the clear button 43.

[0015] In the search example in Figure 4, "Resource Gantt Chart (Fixed Plan / Provisional Plan)" is selected as the display type 31, "Heat Exchanger Parts Processing" is selected as the production plan group 32, and provisional registration 38 is selected as the target to reflect 37 for the search. Here, "resources" include not only equipment that processes and produces products, such as processing equipment 3, but also groups of on-site workers when processing and production are mainly done by human hands. In short, resources are the machines, personnel, and other resources that are directly used to process and produce products. Furthermore, "Fixed Plan / Provisional Plan" refers to a plan in which the production of products has been confirmed to be carried out according to that schedule. A provisional plan refers to a plan that is still in the process of being planned as a schedule for product production.

[0016] The search results are displayed in the search results list 42 by the display unit 22. In this example, the search results list 42 shows different items, such as a Gantt chart, each in a different color. In the drawings of this application, these color differences are indicated by the type of hatching, etc. In the search results list 42, the resources 44 according to the search conditions are listed on the vertical axis, such as "Heat Exchanger Press PR High-Speed ​​Press No. 1" and "Heat Exchanger Press PR High-Speed ​​Press No. 2." The final plans (a series of horizontal Gantt charts 51) and provisional plans (a series of horizontal Gantt charts 52) for these resources 44 are displayed vertically aligned on the horizontal axis through information processing by the display unit 22. Although not shown in Figure 4 and below, a vertical line indicating the current time is also displayed in the search results list 42. Note that "chronologically" means that events (Gantt charts) with earlier times are displayed to the left of the screen than events (Gantt charts) with later times, thus arranging the events in chronological order along the time axis.

[0017] In the "Heat Exchanger Bless PR High-Speed ​​Press No. 1," the Gantt chart 51 of the final plan and the Gantt chart 52 of the provisional plan are displayed side by side chronologically and arranged vertically. That is, the Gantt chart 51 with an earlier time is displayed to the left of the Gantt chart with a later time. Of the Gantt charts 51, Gantt chart 511 concerns the final plan that has already been completed in the "Heat Exchanger Bless PR High-Speed ​​Press No. 1." Gantt chart 512 concerns the final plan that is currently being worked on in the "Heat Exchanger Bless PR High-Speed ​​Press No. 1." Gantt chart 512 is displayed vertically and with the same content in both Gantt chart 51 and Gantt chart 52. Gantt chart 53 displays provisional plans whose execution has not yet been confirmed and is labeled "Not Started." Each Gantt chart can be manually entered by the user using a GUI such as a mouse, but the vertical parallel display of Gantt charts 51 and 52 is performed by the information processing of the display unit 22. For resource 44, where only a Gantt chart for a provisional plan whose execution is not yet confirmed exists, and there is no Gantt chart for a confirmed plan, only the Gantt chart for the provisional plan whose execution is not yet confirmed will be displayed (see "Heat Exchanger Breath PR High-Speed ​​Press Unit 2" and "Heat Exchanger Breath PR High-Speed ​​Press Unit 3"). The same applies to resource 44 where a Gantt chart for a confirmed plan exists, but there is no Gantt chart for a provisional plan whose execution is not yet confirmed.

[0018] In the case of the "Heat Exchanger Press UD High-Speed ​​Press No. 1," Gantt chart 54 is a Gantt chart of the finalized schedule where work cannot be performed due to resource failure, worker toilet breaks, die changes during production, etc. As a result, the plan in Gantt chart 55, which follows Gantt chart 54 of the finalized schedule for the "Heat Exchanger Press UD High-Speed ​​Press No. 1," will be delayed. In this case, the work that was scheduled for the "Heat Exchanger Press UD High-Speed ​​Press No. 1" may also be possible to perform on the "Heat Exchanger Press PR High-Speed ​​Press No. 2" or "Heat Exchanger Press PR High-Speed ​​Press No. 3." In this case, the user can drag Gantt chart 55 to change it to the finalized schedule or provisional schedule for the "Heat Exchanger Press PR High-Speed ​​Press No. 2" or "Heat Exchanger Press PR High-Speed ​​Press No. 3," etc.

[0019] In this case, the PR high-speed press and the UD high-speed press have different specifications. Therefore, even when performing the same task, the time required may differ between the PR high-speed press and the UD high-speed press. Information regarding the specifications of each resource 44 is stored in the resource DB 17. The adjustment unit 23 then refers to the schedule of the original Gantt chart 55 and the resource DB 17 to adjust the required time of the Gantt chart 55 that has been newly moved to "Heat Exchanger Press PR High-Speed ​​Press No. 2" or "Heat Exchanger Press PR High-Speed ​​Press No. 3", etc., and records and displays it as a new Gantt chart.

[0020] Furthermore, when such schedule changes are made, Gantt charts for items in the revised final plan or provisional plan may also need to be changed. In this case, the user can drag the Gantt chart of the item in question to change the schedule. However, by clicking the reassign button 68, the adjustment unit 23 can automatically move the Gantt chart of the item in question to a predetermined position.

[0021] Figure 5 is a plan view showing an example of a search result list for another case similar to Figure 4. Among resource 44, "Large Press" Ip In "Res1," the Gantt chart 51 for the final plan and the Gantt chart 52 for the provisional plan are displayed side by side, one above the other. In this case, both Gantt charts display the finalized plans and currently in progress in chronological order with the same content. However, in this currently in-progress plan, "Large Press I Press No. 1" has become unusable due to a malfunction, so the user has to use "Large Press Ip It was revealed that "Res 1" would be unavailable until 16:00 by inputting the information into Gantt Chart 57 using a GUI such as a mouse. This allows the revised schedule to be entered and displayed. In other words, "Daimotsu Press" Ip The remaining work shown in Gantt charts 51 and 52 after the interruption due to a malfunction of "Res No. 1" was carried out by "Large-scale Pressing". IpThe task to be carried out with "Res No. 2" is one of the resources 44, "Large-scale Pressing". Ip In the display field for "Res2," the Gantt chart 58 for the final plan and the Gantt chart 59 for the provisional plan were entered and shown.

[0022] Figures 6 and 7 are plan views showing an example of a search result list for another case similar to Figure 4. As shown in Figure 6, in this example, resource 44 is "large press". Ip The Gantt chart 61 of the plan, which was finalized and in progress for "Res Unit 1," became unexecutable midway through due to a failure of the resource in question. The period of unexecutable work is shown by inputting Gantt chart 62. In other words, since the latter half of Gantt chart 61 overlaps with Gantt chart 62, it can be seen that the work corresponding to Gantt chart 61 that overlaps with Gantt chart 62 is unexecutable. Prior to that, resource 44, "Large Press" Ip In "Res Unit 2," only Gantt chart 63 showing confirmed unstarted schedules was displayed, but the user said, "Big Press" Ip The remaining work plan for Gantt Chart 61, which became unexecutable in "Res Unit 1", was changed to "Daimotsu Press" Ip The display field for "Res Unit 2" is entered as Gantt Chart 64. Since this plan overlaps with the unstarted plan in Gantt Chart 63, Gantt Chart 63 is moved after Gantt Chart 64 to become Gantt Chart 65. This move may be performed automatically by the adjustment unit 23 as described above. In this case, "Large Press" Ip "Res Unit 1" and "Big Press" Ip The specifications may differ from those of "Unit 2 of Less." Therefore, the adjustment of the duration of Gantt charts 64 and 65 is performed by the adjustment unit 23 by referencing the schedules of Gantt charts 64 and 65 with the resource DB 17, as described above.

[0023] Returning to Figure 4, the Confirm button 66 is clicked when the user confirms and registers the information entered on the screen as a final plan. The Register button 67 is clicked when the user registers the information entered on the screen as a provisional plan. As mentioned above, the Reassign button 68 is clicked when the system processes the information to automatically move the Gantt chart.

[0024] As shown in Figure 7, by pressing the confirm button 66 in Figure 4, the input content described above will be displayed on the screen, referring to Figure 6. Gantt chart 71 shows the confirmed plan, and Gantt chart 72 shows the unconfirmed plan. When the plan is changed in Figure 6, the display of Gantt chart 61 disappears, and in Figure 7, Gantt charts 71 and 72 showing the changes made to the plan in Figure 6 are displayed. The reason why the contents of Gantt chart 71 and Gantt chart 72 are exactly the same is because those tasks have not been completed and are either in progress or have not yet been started. Note that in Figure 6, the time is shown on a scale of 10 minutes, while in Figure 7, the time is shown on a scale of 15 minutes. The start time of Gantt chart 64 and the end time of Gantt chart 65 in Figure 6 correspond to the start and end times of Gantt chart 71 in Figure 7.

[0025] Figure 8 is a plan view showing another example of the screen displayed on the terminal device's display by the Gantt chart management device. When the same reference numerals are used in Figures 8 and below as in Figures 7 and earlier, they refer to the same components as in the examples in Figures 7 and earlier. In this example, an example of the screen display is shown when "Resource Gantt Chart (Fixed Plan / Actual)" is entered as display type 31 and a search is performed. Here, "Actual" refers to the actual extent to which the fixed plan has been completed.

[0026] In Figure 8, for each resource 44, the display unit 22 displays the finalized Gantt chart 81, the work performance Gantt chart 82, and the resource's operating status Gantt chart 83 for the same resource 44, aligned horizontally over time and arranged vertically. In the resource operating status Gantt chart 83, the color of Gantt chart 831 indicates that the resource is in operation, the color of Gantt chart 832 indicates that the resource is on standby, the color of Gantt chart 833 indicates that the resource's power is off, and the color of Gantt chart 834 indicates that there is an abnormality in the resource (Figure 8 shows that an abnormality occurred 7 times for an operational resource). The information in the resource operating status Gantt chart 83 can be recognized by the Gantt chart management device 1 from the processing device 3 (Figure 1), which is resource 44, or it can be manually entered by the user.

[0027] In the "Heat Exchanger Press UD High-Speed ​​Press No. 1" section, Gantt chart 85, which is a composite of Gantt charts 81 and 82, indicates that work cannot be performed due to equipment failure of the resource (manual input by the user). Meanwhile, in the resource operation status Gantt chart 83, the color of Gantt chart 834 indicates that the "Heat Exchanger Press UD High-Speed ​​Press No. 1" is inoperable (automatic detection by Gantt chart management device 1). The time difference between Gantt chart 85 and Gantt chart 834 allows us to confirm the discrepancy between the timing of receiving the abnormality notification signal for the resource and the report by the worker regarding the commencement of countermeasures against the resource failure. In this case, it is possible that priority was given to responding to the resource failure, or it is possible that the worker was unable to respond, resulting in a delay in the commencement of countermeasures. From these discrepancies, it is possible to verify the differences between the worker's report and reality and gain insights.

[0028] Furthermore, after the failure period of the aforementioned "Heat Exchanger Press UD High-Speed ​​Press No. 1," operations resumed, as shown in Gantt charts 86 and 87. However, the resource operation status Gantt chart 83 shows that even during that period, there were repeated occurrences of very short-duration abnormalities in the resource, as indicated by multiple short Gantt charts 834 (seven short Gantt charts 834). Therefore, it can be seen that the time difference between the finalized Gantt chart 81 and the work performance Gantt chart 82 is due to the resource frequently stopping, even if each instance was relatively short.

[0029] Figure 9 is a plan view showing another example of a screen displayed on a terminal device's display by a Gantt chart management system. This example shows a screen displayed when searching for "Order Gantt Chart (Confirmed Plan / Actual)". An "Order Gantt Chart" is a Gantt chart for product orders. This data shows the progress of product orders. An order might be, for example, "Manufacture 100 units of product A, with a delivery date of XX." Processing each order typically consists of multiple steps such as processing, assembly, and inspection.

[0030] In this case, the search results list 42 has the orders 90 listed on the vertical axis and the time axis on the horizontal axis. For each order, the display unit 22 displays the Gantt chart 91 of the finalized plan and the Gantt chart 92 of the actual results side by side, with the time axes aligned vertically. For the order "CAR101 OD05322-r Production Quantity: 3", the processes of "processing", "assembly", and "inspection" are required. However, the Gantt chart 911 showing the "processing" stage in the finalized plan Gantt chart 91 is behind schedule in the actual Gantt chart 92, as shown in Gantt chart 921. Consequently, the subsequent processes of "assembly" and "inspection" are also behind schedule in Gantt chart 92, as shown in Gantt charts 912 and 913.

[0031] For the order "CAR101 OD05321 Production Quantity: 3", comparing the finalized plan Gantt chart 91 with the actual Gantt chart 92, we can see that the first process is completed, corresponding to Gantt chart 924 in Gantt chart 914. However, it can be seen that the processes corresponding to Gantt charts 925 and 926 in the finalized plan Gantt chart 91 have not started in the actual Gantt chart 92. Examining this chart provides a starting point for investigating why the processes corresponding to Gantt charts 925 and 926 were not carried out.

[0032] Figures 10 and 11 are plan views illustrating a comparison between the Gantt chart of the finalized plan and the Gantt chart of the actual results, as shown in the example in Figure 9. In the example in Figure 10, it can be seen that when the second and subsequent processes are completed on schedule, delays in the first process lead to delays in the entire order.

[0033] In the example in Figure 11, the indicator "Delayed" is added to each process in the Gantt chart 92 of the actual progress, making it easier to see the difference between the actual progress and the original plan.

[0034] Figure 12 is a plan view illustrating other functions of the table in Figure 9. A pop-up image 94 appears when, for example, the user right-clicks on the Gantt chart 91 of the finalized plan. This pop-up image 94 shows details of the Gantt chart the cursor is hovering over, along with information such as a 60-minute delay in the start of the work and 30 minutes of work time elapsed. This allows the user to understand the delay status of each task. Next, the effects and advantages of this embodiment will be described.

[0035] As shown in Figure 4, the display unit 22 displays the finalized Gantt chart 51 and the Gantt chart 52 being edited for the same resource, aligned horizontally over time and placed vertically. This makes it easier to plan future work and simplify the creation of the Gantt chart 52. Furthermore, when the adjustment unit 23 moves a specific schedule from the finalized Gantt chart 51 to the Gantt chart 52 being edited, it adjusts the time required to process the moved schedule by referencing the schedule with the resource DB 17 and reflects this in the moved Gantt chart. This makes it easy to incorporate differences in resource specifications and reschedule.

[0036] Furthermore, the adjustment unit 23 also automatically moves a specific schedule in the finalized Gantt chart 51 to a predetermined position in the Gantt chart 52 being edited. This makes it easier for the user to adjust their schedule.

[0037] As shown in the example in Figure 8, the display unit 22 displays the finalized Gantt chart 81 for the same resource, the Gantt chart 82 showing the actual work performed, and the Gantt chart 83 showing the resource's operational status, aligned horizontally over time and arranged vertically. This makes it easy for the user to quickly understand the relationship between the resource's operational status and the progress of the schedule.

[0038] As shown in the example in Figure 9, the display unit 22 displays the Gantt chart 91 with confirmed order information and the Gantt chart 92 showing work results side by side, aligned chronologically, and arranged vertically. This allows the user to easily grasp the progress of processing the assigned orders. It should be noted that the present invention is not limited to the embodiments described above, and various modifications are included. For example, the embodiments described above are explained in detail to make the present invention easier to understand, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to add, delete, or replace some of the configurations in each embodiment with other configurations.

[0039] Furthermore, each of the above configurations, functions, processing units, and processing means may be implemented in hardware, either partially or entirely, by designing them as integrated circuits, for example. Alternatively, each of the above configurations and functions may be implemented in software by having the processor interpret and execute programs that implement each function. Information such as programs, tables, and files that implement each function can be stored in memory, a recording device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC card, SD card, or DVD.

[0040] Furthermore, the control lines and information lines shown are those deemed necessary for explanatory purposes, and not all control lines and information lines are necessarily shown in the actual product. In reality, it can be assumed that almost all components are interconnected. In Figures 1 and 2, the Gantt chart management device is shown as being connected to terminal device 2 via a network. However, a single smartphone or tablet can also serve as both the Gantt chart management device 1 and terminal device 2. [Explanation of symbols]

[0041] 1. Gantt chart management device 17. Resource Database (DB) 21. Gantt Chart Specific Section 22 Display section 23 Adjustment part

Claims

1. A Gantt chart identification unit identifies a Gantt chart relating to the usage schedule of processing equipment used in the manufacturing of a product, The system includes a display unit that displays the Gantt chart identified by the Gantt chart identification unit on a display device, The display unit is a Gantt chart management device that displays a finalized Gantt chart, a Gantt chart of work results, and the resource utilization status related to the same processing apparatus in a chronological order.

2. A Gantt chart identification unit identifies a Gantt chart related to the order information for the manufacturing of a product, The system includes a display unit that displays the Gantt chart identified by the Gantt chart identification unit on a display device, The display unit is a Gantt chart management device that displays a Gantt chart of confirmed order information and a Gantt chart of work results side by side in a chronological order.

Images