Fundamentals of Software Development 1Slide 1 System Tests Performed on the Entire SystemPerformed on the Entire System System Test intends to validateSystem Test intends to validate –The functionality delivered is complete –The software quality is acceptable Generally conducted by Quality Assurance TeamGenerally conducted by Quality Assurance Team

Fundamentals of Software Development 1Slide 2 Things May Work By Themselves but not Together Sometimes the Robot’s arms and legs work separately but not together. There may be several reasons... for example:Sometimes the Robot’s arms and legs work separately but not together. There may be several reasons... for example: –Insufficient power supply –Balancing two moving pieces –Physical Interference

Fundamentals of Software Development 1Slide 3 System Testing Process Quality Assurance TeamQuality Assurance Team –detects and lists all the bugs Development TeamDevelopment Team –fixes them one by one Quality Assurance TeamQuality Assurance Team –retests to validate the fixes After all the required bugs have been fixed,After all the required bugs have been fixed, –the systems is sent through Regression Testing Regression Testing is validating that what previously worked properly still works properly!

Fundamentals of Software Development 1Slide 4 System Release System is released with known bug listSystem is released with known bug list –Fixes to known bugs may be scheduled for later releases –Or fixes may be deferred indefinitely due to Low significanceLow significance High costHigh cost Limited resourcesLimited resources