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Personal software process

Personal software process. Mohammed ahmed ali. What is psp. The personal software process (psp) is a structured set of process descriptions, measurements and methods that can help engineers improve their personal performance

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Personal software process

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  1. Personal software process Mohammed ahmed ali

  2. What is psp The personal software process (psp) is a structured set of process descriptions, measurements and methods that can help engineers improve their personal performance The goal of the personal software process is to discipline software process

  3. PSP evolution • The personal software process has been developed by Watts Humphrey and software engineering institute (sei). • The research work on the psp was started in 1989.it resulted in a process model which proved to be very beneficial for software engineers

  4. Benefits of PSP • It helps the software engineers in developing high quality software products • It guides the engineer for personal improvement • It gives the confidence to do the job the way you know you should • The psp gives the command over your work

  5. PSP process The psp introduces process concepts in a series of steps. Each step includes all the elements of the prior steps together with one or two additions. As shown in the figure below

  6. The Cyclic personal process PSP 3 Cycle development PSP2.1 Design template Personal Quality Management PSP2 Code reviews Design Reviews PSP1.1 Task planning Scheduleplanning Personal Planning PSP1 Size estimating Test report PSP0.1 Codingstandard Sizemeasurement Process improvement Proposal The Baseline Personal Process PSP0 Current process Time recording Defect recording Defect type standard Personal software process

  7. The engineers follow methods from PSP0 to PSP3 while working on the software with each level they are introduced to different methods which let them know and measure their performance. The psp consists of following processes • Base line personal process (PSP0) • Personal planning process (PSP1) • Personal quality management (PSP2) • Cyclic personal process (PSP3)

  8. Baseline personal process (PSP0) • It establishes the baseline for measuring the progress and to define a foundation on which to improve • Psp0 has three phases that is planning, development and postmortem • The planning and development phase includes plan, design, code, compile and test

  9. In postmortem a comparison of actual performance with the plan is made. This provides a basis for measuring progress and defines a foundation on which to improve • Psp0.1 defines coding standard, size measurement and personal improvement proposal

  10. Plan Documents Design Code Compile Fix and log All defects Found Logs Test Postmortem Records of Actual time, Defect and Size data of plan Project Plan Summary Baseline personal process

  11. Personal planning process(psp1) • Psp1 and psp1.1 focus on personal project management techniques, introducing size and effort estimating, schedule planning and schedule tracking methods • Size and effort estimates are made using PROBE (PROxy Based Estimating) method • With PROBE engineers use the relative size of proxy to make their initial estimate

  12. Personal quality management(psp2) • Psp2 introduces defect management. This phase adds personal design and code reviews and quality management and evaluation to psp1 • There are two tasks involve in psp2 they are code review and design review • Code review: whose goal is to improve the quality of the software by reviewing the program and its associated documentation

  13. Design review: whose task is to verify program logic, verify function use, ensure that requirements, specifications are completely covered by the design • The psp2.1 introduces design completeness and design verification • The psp2.1 adds four design templates and design verification systems. This improves the design process and design verification

  14. Cyclic personal process (psp3) • This is the final step of psp. Till now what we have discussed is about related to small programs • Psp3 is used for large programs the technique is to divide the larger programs into small programs of psp2.1 size then psp3 combines multiple psp2.1 process into large scale software development • This is a iterative process

  15. Specifications Requirements & Planning Specify Cycle High-level Design and Design Review Development Cyclic Development Reassess Cycle Postmortem Finished Product Project and Process Data Cyclic personal process

  16. Thank you

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