CN112463119B - Software development method based on V-process work decomposition structure - Google Patents
Software development method based on V-process work decomposition structure Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 17
- 238000012827 research and development Methods 0.000 claims abstract description 50
- 238000011161 development Methods 0.000 claims abstract description 22
- 235000013599 spices Nutrition 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 230000000750 progressive effect Effects 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 28
- 238000013461 design Methods 0.000 claims description 21
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- 238000012797 qualification Methods 0.000 claims description 13
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/10—Requirements analysis; Specification techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/3668—Software testing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/20—Software design
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention is suitable for the research and development field and the work decomposition structure of the embedded software research and development project. An infrastructure for development project management is provided. A range baseline is provided for the development project. Automobile SPICE is an internationally known quality management standard developed by embedded software in the Automotive industry, which provides 32 process reference models. The V-flow work decomposition structure accords with the quality standard of an automatic SPICE research and development project, adopts a system engineering process group (SYS) and a software engineering process group (SWE) in an automatic SPICE process reference model, adopts an iteration increment project life cycle according to the basic characteristics of progressive and clear requirements of the research and development project, invents a work decomposition structure which can be repeatedly defined in an iteration research and development stage environment, and develops a V-flow work decomposition structure tool based on a VBA technology under an EXCEL platform.
Description
Technical Field
The invention is suitable for the research and development field and the work decomposition structure of the embedded software research and development project. An infrastructure for development project management is provided. A range baseline is provided for the development project.
Background
Automobile SPICE is an internationally known quality management standard developed by embedded software in the Automotive industry, which provides 32 process reference models. Among them, 16 processes are the basic choice for quality certification of the automatic SPICE project. They are distributed in the provisioning process group (ACQ) system engineering process group (SYS), software engineering process group (SWE), support process group (SUP), management process group (MAN).
The system engineering process set (SYS) and the software engineering process Set (SWE) belong to the engineering lifecycle of the automatic SPICE, starting from the system demand analysis (sys.2), in the following order: system architecture design (sys.3), software requirement analysis (compliance swe.1), software architecture design (swe.2), software detailed design and cell construction (swe.3), software cell verification (compliance swe.4), software integration and testing (swe.5), software qualification testing (swe.6), software system integration and testing (sys.4), system qualification testing (sys.5), and development flows are established.
Meanwhile, five groups of traceability relations are built between the processes of system demand analysis (SYS.2) and system qualification test (SYS.5), system architecture design (SYS.3) and system integration and test (SYS.4), software demand analysis (SWE.1) and software qualification test (SWE.6), software architecture design (SWE.2) and software integration and test (SWE.5), software detailed design and unit construction (SWE.3) and software unit verification (SWE.4) and the like, and the workflow lines and traceability relation lines jointly form V-shaped appearance of connection between the ten processes.
The V-process work decomposition structure employs a standard architecture process developed in advance, which is compatible with the V-feature process of the automatic SPICE, which is the meaning of the V-process, see fig. 1.
Disclosure of Invention
The invention provides a software development method based on a V-flow work decomposition structure, which accords with the quality standard of an automatic SPICE research and development project, adopts a system engineering process group and a software engineering process group in an automatic SPICE process reference model, adopts an iteration increment project life cycle according to the basic characteristics of progressive clarity of research and development project requirements, provides a work decomposition structure which can be repeatedly defined in an iteration research and development stage environment, and is developed into a VPWBS tool based on a VBA technology under an EXCEL platform, and specifically comprises the following steps:
(1) The top layer is the project: defining project products, acceptance criteria and product decomposition structures of the research and development project, and further comprising iterative research and development stages and project management work formulated according to the progress of customer demands;
(2) The first layer is an iterative development stage: the method comprises the following tasks: project product work, front-end development work, software development tasks and rear-end development work;
(3) Project tasks of the second layer: in the whole project life cycle, continuously maintaining project product definition, acceptance criteria and product decomposition structures through output files of the V flow until the project product is completely realized and accepted;
(4) Leading research and development work of the second layer: the method belongs to iterative research and development life cycles, and comprises system demand analysis work, system architecture design work, software demand analysis work and software architecture design work, wherein the output file of each iterative cycle comprises: new system architecture elements, a number of new software components;
(5) Software development tasks of the second layer: the method belongs to an iterative research and development life cycle, and defines a plurality of new software component development tasks according to an output file of a front-end research and development work; further comprising performing software integration work on the completed software component product: software integration and test, and software qualification test;
(6) Post-development work of the second layer: belongs to the iterative research and development life cycle, and comprises the system integration work: the integration work is to integrate the existing integrated software and system architecture of the project with newly added software components and new system architecture elements delivered by the software development task to generate updated integrated software and system architecture and system qualification test work;
(7) The third layer is a software component development task, and the upper layer task is a software development task; the method comprises the following steps of: defining a plurality of software units;
(8) The fourth layer is a software unit construction task, and the upper layer task is a software component development task; the method comprises a software unit construction work and a software unit verification work, and aims to realize a software unit product;
(9) The activities performed at each unit of work in the VPWBS originate from standard practices defined within established standard process hierarchy files;
(10) The output file of each unit of work in the VPWBS is derived from the standard output file defined within the established standard process hierarchy file;
(11) The VPWBS (virtual private space service) number realized in the EXCEL electronic watch is automatically generated, and the WBS number is not changed due to the addition of a new iteration stage, a new software component and a new software unit into the WBS number in the whole project implementation process, so that the uniqueness of the WBS number is ensured;
the standard process system files are eleven standard process system files corresponding to a system engineering process group and a software engineering process group which are defined according to an AutomotiveSPICE process reference model;
and developing a new iterative research and development stage according to the progress of the client demands, and executing the following research and development steps in each iterative research and development period:
step 1, leading research and development work; executing a V flow, comprising: a system demand analysis process, a system architecture design process, a software demand analysis process, and a software architecture design process; identifying a plurality of software component items, and generating a plurality of software component tasks under a software development task by using the software component items as drivers;
step 2, developing a software component to work; executing a V flow, comprising: the software detailed design process is used for identifying a plurality of software unit items and generating a plurality of software unit tasks by taking the software unit items as drivers;
step 3, developing a software unit to work; executing a V flow, comprising: a software unit construction process and a software unit verification process, so as to obtain a software unit product conforming to the software detailed design;
step 4, integrating software unit products; executing a V flow, comprising: the software integration and test process is carried out to obtain a software component product conforming to the software architecture design;
step 5, the whole confirmation of the software product is performed; executing a V flow, comprising: a software qualification testing process for confirming the overall qualification of the software increment submitted to the project product by the software development task;
step 6, integrating the system; and executing post-research and development work of the V flow: executing system integration and test processes to obtain an integrated system which accords with the system architecture design of the existing system architecture elements and increment elements;
step 7, integrating system confirmation work, and executing post-research and development work of the V flow: and executing a system qualification test process to confirm the overall qualification of the system increment of the project product submitted by iterative research and development.
Drawings
Fig. 1: v flow chart
Fig. 2: v-process work decomposition structure diagram
Fig. 3: software demand analysis standard process summary chart
Fig. 4: software architecture design standard process outline chart
Fig. 5: software detailed design and unit construction standard process outline chart
Fig. 6: software unit verification standard process outline chart
Fig. 7: software integration and test standard process summary chart
Fig. 8: software qualification test standard process outline chart
Fig. 9: project example chart
Detailed Description
And developing a new iterative research and development stage according to the progress of the client demands, executing the following seven research and development steps in each iterative research and development period, wherein the progress of the project demands is clear, and the project products are realized gradually.
(1) The first step of research and development is the pre-research and development work; executing a V flow, comprising: a system demand analysis process (compliance sys.2), a system architecture design process (compliance sys.3), a software demand analysis process (compliance swe.1), a software architecture design process (compliance swe.2); a plurality of software component items are identified, and are used as drivers to generate a plurality of software component tasks under the software development task.
(2) The second step of development is to develop software components; executing a V flow, comprising: the software detailed design process (compliance swe.3) identifies several software element items and creates several software element tasks for driving the generation.
(3) The third step of development is to develop a software unit; executing a V flow, comprising: a software cell build process (compliance swe.3) and a software cell verification process (compliance swe.4) to obtain a software cell product that conforms to the software detailed design.
(4) The fourth step of research and development is the integration work of the software unit products; executing a V flow, comprising: the software integration and testing process (compliance swe.5) results in a software component product that conforms to the design of the software architecture.
(5) The fifth step of research and development is the whole validation work of the software product; executing a V flow, comprising: the software qualification test process (compliance SWE.5) validates the overall qualification of the software delta submitted to the project product by the software development task.
(6) The sixth step of research and development is the system integration work; and executing post-research and development work of the V flow: and (3) executing a system integration and test process (compliance SYS.4) to obtain the integrated system which accords with the system architecture design of the existing system architecture elements and the increment elements.
(7) The seventh step of research and development is to confirm the work of the integrated system and execute the post research and development work of the V flow: a system qualification test process (compliance sys.5) is performed to confirm the overall qualification of the system increments of the project product submitted by the iterative development.
Claims (1)
1. A software development method based on a V-flow work decomposition structure accords with the quality standard of an automatic SPICE research and development project, adopts a system engineering process group and a software engineering process group in an automatic SPICE process reference model, adopts an iteration increment project life cycle according to the basic characteristics of progressive clarity of research and development project requirements, provides a work decomposition structure which can be repeatedly defined in an iteration research and development stage environment, and is developed into a VPWBS tool based on a VBA technology under an EXCEL platform, and is characterized in that:
(1) The top layer is the project: defining project products, acceptance criteria and product decomposition structures of the research and development project, and further comprising iterative research and development stages and project management work formulated according to the progress of customer demands;
(2) The first layer is an iterative development stage: the method comprises the following tasks: project product work, front-end development work, software development tasks and rear-end development work;
(3) Project tasks of the second layer: in the whole project life cycle, continuously maintaining project product definition, acceptance criteria and product decomposition structures through output files of the V flow until the project product is completely realized and accepted;
(4) Leading research and development work of the second layer: the method belongs to iterative research and development life cycles, and comprises system demand analysis work, system architecture design work, software demand analysis work and software architecture design work, wherein the output file of each iterative cycle comprises: new system architecture elements, a number of new software components;
(5) Software development tasks of the second layer: the method belongs to an iterative research and development life cycle, and defines a plurality of new software component development tasks according to an output file of a front-end research and development work; further comprising performing software integration work on the completed software component product: software integration and test, and software qualification test;
(6) Post-development work of the second layer: belongs to the iterative research and development life cycle, and comprises the system integration work: the integration work is to integrate the existing integrated software and system architecture of the project with newly added software components and new system architecture elements delivered by the software development task to generate updated integrated software and system architecture and system qualification test work;
(7) The third layer is a software component development task, and the upper layer task is a software development task; the method comprises the following steps of: defining a plurality of software units;
(8) The fourth layer is a software unit construction task, and the upper layer task is a software component development task; the method comprises a software unit construction work and a software unit verification work, and aims to realize a software unit product;
(9) The activities performed at each unit of work in the VPWBS originate from standard practices defined within established standard process hierarchy files;
(10) The output file of each unit of work in the VPWBS is derived from the standard output file defined within the established standard process hierarchy file;
(11) The VPWBS (virtual private space service) number realized in the EXCEL electronic watch is automatically generated, and the WBS number is not changed due to the addition of a new iteration stage, a new software component and a new software unit into the WBS number in the whole project implementation process, so that the uniqueness of the WBS number is ensured;
the standard process system files are eleven standard process system files corresponding to a system engineering process group and a software engineering process group which are defined according to an AutomotiveSPICE process reference model;
and developing a new iterative research and development stage according to the progress of the client demands, and executing the following research and development steps in each iterative research and development period:
step 1, leading research and development work; executing a V flow, comprising: a system demand analysis process, a system architecture design process, a software demand analysis process, and a software architecture design process; identifying a plurality of software component items, and generating a plurality of software component tasks under a software development task by using the software component items as drivers;
step 2, developing a software component to work; executing a V flow, comprising: the software detailed design process is used for identifying a plurality of software unit items and generating a plurality of software unit tasks by taking the software unit items as drivers;
step 3, developing a software unit to work; executing a V flow, comprising: a software unit construction process and a software unit verification process, so as to obtain a software unit product conforming to the software detailed design;
step 4, integrating software unit products; executing a V flow, comprising: the software integration and test process is carried out to obtain a software component product conforming to the software architecture design;
step 5, the whole confirmation of the software product is performed; executing a V flow, comprising: a software qualification testing process for confirming the overall qualification of the software increment submitted to the project product by the software development task;
step 6, integrating the system; and executing post-research and development work of the V flow: executing system integration and test processes to obtain an integrated system which accords with the system architecture design of the existing system architecture elements and increment elements;
step 7, integrating system confirmation work, and executing post-research and development work of the V flow: and executing a system qualification test process to confirm the overall qualification of the system increment of the project product submitted by iterative research and development.
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