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Software Engineering Process

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Explore the importance of software engineering processes, the impact on productivity, quality, and reliability. Learn about PSP, TSP, and their benefits for software development teams.

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Software Engineering Process

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  1. Software Engineering Process Based on what you have learned so far… • What is your current development process? • What can you say about it? • What is good/bad about it? SE-280Dr. Mark L. Hornick

  2. If you are given a requirements specification for a medium-sized program, could you state in advance . . . . . . how long it would take you to write the program? . . . how many defects you would inject during its development? . . . how many defects will remain when it is completed? SE-280Dr. Mark L. Hornick

  3. Why do we need a Process? Many organizations today cannot meet commitments with repeatability • Project A completes without any problems • Project B is a disaster • Late • Incomplete • Not tested Too many times, the result is • Cancelled projects • Management over-reaction SE-280Dr. Mark L. Hornick

  4. Data from PSP training courses usually show similar results for practicing software engineers and MSOE SE students. SEI: 810 engineers MSOE: 30 sophomore students SE-280Dr. Mark L. Hornick

  5. And sometimes they don’t agree... SEI: 810 engineers MSOE: 30 sophomore students SE-280Dr. Mark L. Hornick

  6. Testing time is a major cost in commercial software development; PSP course data shows a general reduction in test time. SEI: 810 engineers MSOE: 30 sophomore students SE-280Dr. Mark L. Hornick

  7. Even with additional PSP planning and quality activities, overall productivity remains nearly constant. SEI: 810 engineers MSOE: 30 sophomore students SE-280Dr. Mark L. Hornick

  8. Industry experience shows that the TSP can help teams achieve high levels of quality. Total Delivered Defects/KLOC N. Davis and J. Mullaney, The Team Software Process (TSP) in Practice: A Summary of Recent Results, Technical Report CMU/SEI-2003-TR-014, www.sei.cmu.edu/publications/. SE-280Dr. Mark L. Hornick

  9. By increasing predictability, the TSP helps teams to function more effectively. CMM introduced TSP introduced [Source: AIS] SE-280Dr. Mark L. Hornick

  10. In 2005, Humphrey was awarded the National Medal of Technology for his work in software process improvement. SE-280Dr. Mark L. Hornick

  11. Jan 15, 2009 Watts Humphrey named ACM Fellow • For contributions to computing and Information Technology • For innovations made in areas critical to Global Competitiveness • For contributions to software engineering process discipline Watts Humphrey1927-2010 SE-280Dr. Mark L. Hornick

  12. You can improve your own performance as a software engineer using disciplined methods, but it does take some effort. MSOE sports photos courtesy of Dr. Eric Durant SE-280Dr. Mark L. Hornick

  13. W. Humphrey, PSP – A Self-Improvement Process for Software Engineers, A-W, 2005 W. Humphrey, Introduction to the Team Software Process, A-W, 2000 W. Humphrey, Winning with Software: An Executive Strategy, A-W, 2002 N. Davis & J. Mullaney, The Team Software Process in Practice: A Summary of Recent Results, SEI, 2003 SEI/CMU-2003-TR-014 (www.sei.cmu.edu) D. Suri and M. Sebern, “Incorporating software process in an undergraduate software engineering curriculum: challenges and rewards”, Proceedingsof CSEE&T’04, 2004 M. Sebern, “The software development laboratory: incorporating industrial practice in an academic environment”, Proceedingsof CSEE&T’05, 2005 Here are a few references on SE process, PSP, and TSP. SE-280Dr. Mark L. Hornick

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