1. 1 12/5/2015ã 2007, Spencer Rugaber Software Engineering Software engineering is concerned with the production of large scale software artifacts by teams of individuals Software engineering is the application of science and mathematics by which the capabilities of computer equipment are made useful to man via computer programs, procedures, and associated documentation -- B. Boehm Software engineering... is the part of computer science that is too difficult for the computer scientists -- F. L. Bauer

2. 2 12/5/2015ã 2007, Spencer Rugaber What is a Process?

3. 3 12/5/2015ã 2007, Spencer Rugaber What is a Process? A series of activities with a means for determining progress

4. 4 12/5/2015ã 2007, Spencer Rugaber Software Process The related set of activities and processes that are involved in developing and evolving a software system -- Summerville Process assessment –ISO 9000 –Capability Maturity Model (CMM) Software process improvement –Software Process Improvement Networks (SPIN) –Software Engineering Process Groups (SEPGs)

5. 5 12/5/2015ã 2007, Spencer Rugaber Why Use a Process?

6. 6 12/5/2015ã 2007, Spencer Rugaber Why Use a Process? Management control Reuse of tools, education and artifacts Repeatable quality and productivity

7. 7 12/5/2015ã 2007, Spencer Rugaber Increase in Cost-to-Fix or Change Software throughout the Life Cycle Requirements 1 2 5 10 20 50 100 200 500 1000 DesignCodeDevelopment test Acceptance test Operation [Boehm, 1980] Smaller software projects IBM-SSD GTE SAFEGUARD 80% 20% Median (TRW survey) Phase in which error was detected and corrected (Source : Software Engineering Economics - Boehm)

8. 8 12/5/2015ã 2007, Spencer Rugaber Real World Software Process 1.Order the T-shirts for the development team 2.Announce product availability 3.Write the code 4.Write the manual 5.Hire a product manager 6.Spec the software (writing the specs after the code helps to ensure that the software meets the specifications) 7.Ship 8.Test (the customers are a big help here) 9.Identify bugs as potential enhancements 10.Announce the upgrade program

9. 9 12/5/2015ã 2007, Spencer Rugaber Popular Processes 1.Waterfall 2.Personal Software Process (PSP) / Team Software Process (TSP) 3.Unified Software Process (USP) / Rational Unified Process (RUP) 4.Cleanroom Software Engineering 5.Extreme Programming (XP) / Agile Methods