Helicopter model demand distribution and tracking method

Abstract

The invention provides a helicopter model demand allocation and tracking method, and the method comprises the following steps: defining a demand management information architecture and a demand allocation structure based on a helicopter model demand decomposition structure (RBS); according to a helicopter model product decomposition structure (PBS) definition, demand definition of each level system of a PBS is carried out, and demands are uniquely identified and entries are carried out; carrying out demand allocation on demands of each level system of the PBS, and completing demand allocation to each specialty of a model I PT team through demand allocation attribute definition; according to a helicopter model demand decomposition structure, establishing a demand link of each level system of the PBS, and forming a demand tracing matrix; and based on the demand tracing matrix, carrying out whole-process tracking on the demands of all levels of PBS systems.

Description

Technical Field

[0001] The present application belongs to the field of helicopter demand engineering technology, and in particular, relates to a method for allocating and tracking helicopter model demand. Background Art

[0002] The means of equipment development have continuously evolved from surveying and mapping imitation to independent innovation. The demand-driven, "top-down" forward development process will inevitably become the main process in the development of new weapons and equipment.

[0003] In the process of complex product development, carrying out hierarchical requirement definition, top-down requirement allocation, and achieving full-process tracking of requirements can effectively promote the standardization, accuracy and effectiveness of requirements, and make the input of complex product design more accurate. Summary of the invention

[0004] Purpose of the invention: The present invention proposes a method for allocating and tracking requirements for helicopter models, which is used to realize the rapid definition, agile allocation and full-process tracking of requirements at all levels of helicopter model PBS, thereby improving the efficiency of collaborative definition of requirements at all levels among different design teams, improving the convenience of cross-level and cross-professional requirement allocation, and realizing the tracking of requirements throughout the model development process, providing an agile way to achieve the accuracy, coordination and traceability of the helicopter model development specification system.

[0005] The present application provides a method for allocating and tracking helicopter model requirements, the method comprising the following steps:

[0006] Based on the helicopter model requirement breakdown structure (RBS), define the requirement management information architecture and requirement allocation structure;

[0007] According to the definition of helicopter model product breakdown structure (PBS), define the requirements of each level of PBS system, and uniquely identify and itemize the requirements;

[0008] Carry out demand allocation for the requirements of each level of PBS system, and complete the demand allocation to each discipline of the model IPT team through the definition of demand allocation attributes;

[0009] Decompose the structure according to the helicopter model requirements, establish the requirements link of each level of PBS system, and form a requirements traceability matrix;

[0010] Based on the requirement traceability matrix, the whole process of PBS system requirements at all levels is tracked.

[0011] Preferably, before defining the requirement management information architecture and the requirement allocation structure based on the helicopter model requirement breakdown structure (RBS), the method further includes:

[0012] Using the helicopter model product breakdown structure (PBS) as input, develop the helicopter model requirement breakdown structure.

[0013] Preferably, the product breakdown structure (PBS) is a physical description of the composition of entity elements that satisfy the functions of the helicopter system.

[0014] Preferably, based on the helicopter functional composition structure, the functions are decomposed and allocated to the physical elements of the helicopter product composition. Through comprehensive trade-off evaluation of multiple alternative physical element architectures, the optimal helicopter product physical architecture is finally selected, which is the helicopter product decomposition structure.

[0015] Preferably, the demand information architecture is the information link for demand allocation and tracking, which describes and defines the management structure and organization of helicopter demand data information and is the data framework structure basis for demand allocation and tracking.

[0016] Preferably, there is a one-to-one correspondence between the levels of the demand information architecture and the product decomposition structure. The system requirements at each level are organized into a set of requirements through system specifications / development specifications / product specifications. The requirements of the next level system must meet the requirements of the previous level system.

[0017] Preferably, the carrying out demand allocation includes:

[0018] Demand allocation is carried out according to the principle of allocating demand at each level downward step by step.

[0019] Preferably, a demand traceability matrix is ​​established, including:

[0020] After receiving the requirements assigned by the upper level, the person in charge of each level of requirements will carry out detailed definition of the requirements and establish a requirement link relationship between the refined requirements and the assigned requirements, with the link type being satisfied;

[0021] After the requirement link is established, the requirement traceability matrix is ​​formed by the combination of the assigned requirement number, assigned requirement item content, requirement assignment major, requirement assignment confirmation status, system requirement number, and system requirement item content.

[0022] Beneficial technical effects of this application:

[0023] The method for allocating and tracking helicopter model requirements proposed in the present invention complies with the "Military Aircraft Development, Production and Support Procedures" and integrates advanced theoretical methods of requirements engineering. It strongly supports the efficient development of helicopter key model requirements work and also provides a simple and efficient way for the application of requirements engineering in helicopter model development. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flow chart of a method for allocating and tracking helicopter model requirements provided by an embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the exploded structure of a helicopter product provided in an embodiment of the present application;

[0026] Figure 3 It is a schematic diagram of the demand decomposition structure provided by an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of the helicopter demand information architecture provided by an embodiment of the present application;

[0028] Figure 5 This is a demand allocation diagram provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The present invention belongs to the technical field of helicopter demand engineering, and relates to a demand allocation and tracking method in the demand engineering application process of large and complex products such as helicopters. It can also be widely used in the demand engineering of other large and complex products (such as aerospace, ships, weapons, automobiles, etc.).

[0030] See also Figure 1-Figure 5 The present application provides a method for allocating and tracking helicopter model requirements, comprising the following steps:

[0031] 1) Using the helicopter model product breakdown structure (PBS) as input, develop the helicopter model requirement breakdown structure;

[0032] 2) Based on the helicopter model requirement breakdown structure (RBS), define the requirement management information architecture and requirement allocation structure;

[0033] 3) According to the helicopter model product breakdown structure (PBS) definition, carry out the definition of requirements for each level of PBS system, and uniquely identify and itemize the requirements;

[0034] 4) Carry out demand allocation for the requirements of each level of PBS system, and complete the demand allocation to each discipline of the model IPT team through the definition of demand allocation attributes;

[0035] 5) Decompose the structure according to the helicopter model requirements, establish the requirement links of each level of PBS system, and form a requirement traceability matrix.

[0036] 6) Based on the requirement traceability matrix, conduct full-process tracking of system requirements at all levels of PBS.

[0037] It should be noted that: 1) A method for defining the requirement information architecture based on the helicopter model PBS; 2) A method for defining a general helicopter model requirement decomposition structure; 3) A method for rapidly allocating requirements for multiple disciplines based on requirement attributes; 4) A method for tracking the entire process of cross-level requirements based on the requirement traceability matrix;

[0038] In other embodiments of the present application, the present application also includes the following contents:

[0039] 1. Define the helicopter product breakdown structure

[0040] The product breakdown structure (PBS) is a physical description of the physical elements that satisfy the helicopter system functions. Based on the helicopter functional composition structure, the functions are decomposed and assigned to the physical elements of the helicopter product composition. Through comprehensive trade-off evaluation of multiple alternative physical element architectures, the optimal helicopter product physical architecture is finally selected, which is the helicopter product breakdown structure, as shown below Figure 2 shown.

[0041] 2. Define the helicopter requirements breakdown structure

[0042] According to the helicopter product decomposition structure, the helicopter demand decomposition structure is defined. Each layer of product has a one-to-one correspondence with each layer of demand. The demand decomposition structure is as follows Figure 3 shown.

[0043] 3. Define the required information architecture

[0044] The requirement information architecture is the information link for requirement allocation and tracking. It describes and defines the management structure and organization of helicopter requirement data information and is the data framework structure basis for requirement allocation and tracking. The requirement information architecture has a one-to-one correspondence with the product decomposition structure. The system requirements at each level are organized into a set of requirements through system specifications / development specifications / product specifications. The requirements of the next level system must meet the requirements of the previous level system. The helicopter requirement information architecture is defined as follows: Figure 4 shown.

[0045] 4. Carry out demand allocation

[0046] Demand allocation is carried out according to the principle of allocating demand at each level downward step by step, as follows Figure 5 As shown. In order to clearly mark which lower-level system each requirement is assigned to, two requirement attributes, "requirement allocation profession" and "requirement allocation confirmation status", are defined on the properties of each requirement to achieve rapid collaborative allocation for multiple professions and multiple lower-level systems. The requirement allocation profession is set according to the professional field division of the model IPT team. People in different professional fields in the IPT team are responsible for different system requirements; the requirement allocation confirmation status attribute is used to record the allocation confirmation of the requirements, so as to monitor the overall allocation of the requirement data. The allocation method based on requirement attributes can not only realize the quick allocation of requirements, but also clearly record the results of requirement allocation, which is simpler than the traditional method. Each profession is also more efficient in receiving the allocated requirements.

[0047] 5. Establish a demand traceability matrix

[0048] After receiving the requirements assigned by the upper layer, the person in charge of each layer of requirements will carry out detailed definition of the requirements and establish a requirement link relationship between the refined requirements and the assigned requirements, with the link type being satisfied. After the requirement link is established, the requirements traceability matrix is ​​formed by combining the assigned requirement number, the content of the assigned requirement item, the requirement assignment major, the confirmation status of the requirement assignment, the system requirement number, the content of the system requirement item, etc. The style of the requirement traceability matrix is ​​shown in Table 1 below.

[0049] Table 1 Example of requirement traceability matrix

[0050]

[0051] Since demand links are established between requirements at each level, each requirement in the model can be traced to requirements at any level, so as to view the detailed decomposition of requirements and track and analyze the requirements.

[0052] The method for allocating and tracking helicopter model requirements proposed in the present invention complies with the "Military Aircraft Development, Production and Support Procedures" and integrates advanced theoretical methods of requirements engineering. It strongly supports the efficient development of helicopter key model requirements work and also provides a simple and efficient way for the application of requirements engineering in helicopter model development.

Claims

1. A method for allocating and tracking helicopter model requirements, characterized in that: The method comprises the following steps: Based on the helicopter model requirement breakdown structure (RBS), define the requirement management information architecture and requirement allocation structure; According to the definition of helicopter model product breakdown structure (PBS), define the requirements of each level of PBS system, and uniquely identify and itemize the requirements; Carry out demand allocation for the requirements of each level of PBS system, and complete the demand allocation to each discipline of the model IPT team through the definition of demand allocation attributes; Decompose the structure according to the helicopter model requirements, establish the requirements link of each level of PBS system, and form a requirements traceability matrix; Based on the requirement traceability matrix, the whole process of PBS system requirements at all levels is tracked.

2. The method according to claim 1, characterized in that Before defining the requirement management information architecture and the requirement allocation structure based on the helicopter model requirement breakdown structure (RBS), the following is also included: Using the helicopter model product breakdown structure (PBS) as input, develop the helicopter model requirement breakdown structure.

3. The method according to claim 2, characterized in that The product breakdown structure (PBS) is a physical description of the entity elements that satisfy the helicopter system functions.

4. The method according to claim 3, characterized in that Based on the functional composition structure of the helicopter, the functions are decomposed and allocated to the physical elements that make up the helicopter product. Through comprehensive trade-off evaluation of multiple alternative physical element architectures, the optimal helicopter product physical architecture is finally selected, which is the helicopter product decomposition structure.

5. The method according to claim 1, characterized in that The demand information architecture is the information link for demand allocation and tracking. It describes and defines the management structure and organization of helicopter demand data information and is the data framework structure basis for demand allocation and tracking.

6. The method according to claim 5, characterized in that There is a one-to-one correspondence between the levels of the demand information architecture and the product decomposition structure. The system requirements at each level are organized into a set of requirements through system specifications / development specifications / product specifications. The requirements of the next level system must meet the requirements of the previous level system.

7. The method according to claim 1, characterized in that The carrying out of demand allocation includes: Demand allocation is carried out according to the principle of allocating demand at each level downward step by step.

8. The method according to claim 1, characterized in that Establish a demand traceability matrix, including: After receiving the requirements assigned by the upper level, the person in charge of each level of requirements will carry out detailed definition of the requirements and establish a requirement link relationship between the refined requirements and the assigned requirements, with the link type being satisfied; After the requirement link is established, the requirement traceability matrix is ​​formed by the combination of the assigned requirement number, assigned requirement item content, requirement assignment major, requirement assignment confirmation status, system requirement number, and system requirement item content.

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