1 test10a Software Verification and Validation: An Overview Dolores Wallace and Roger Fujii IEEE Software May 89 text pp

2 test10a Verification or Validation? u A. at end of development u B. at each phase u C. to ensure it meets requirements u D. to ensure it meets previous phase requirements

3 test10a Minimum Set of V&V u Table 1 – p 406

6 test10a Four ways to organize V&V u Independent u Embedded in system-engineering group u Embedded in quality assurance group u Embedded in user group

7 test10a Class Discussion u Why is the organization important?

8 test10a Effectiveness u 1982 – McGarry – SEL – not effective –Productivity was lowest, cost of fixing errors was not less than other projects, reliability was no different u 1981 – Radatz – Rome AirDevCenter – effective –Early error detection, improved programmer productivity, savings from early error detection