Reliability growth models for quality management
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Reliability growth models for quality management

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Software Quality Management...

Software Quality Management
Anna University Syllabus
B.E. IV CSE
About Reliability growth models for quality management

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  • 1. Software Quality Management Unit U – IV Roy Antony Arnold G y y Asst. Prof. / CSE
  • 2. • Alth h reliability growth models are meant Although li bilit th d l t for reliability assessment, they are also useful for quality management at the back end of the development process.• Models developed from a previous product or a previous release of the same product can be used to track the testing defects of the current product. d• To have significant improvement, the defect arrival rate ( f il i l t (or failure d i ) of the density) f h current project must fall below the model curve. curve
  • 3. • The QIP involved five extra activities: 1. Blitz testing — "artistic" testing in stressful environments. 2. Customer evaluation — customers conducting testing in the development laboratory. 3. 3 Code inspections — additional inspections of error-prone modules, especially routines that are difficult to test such as the error recovery/exception h dli routines. / ti handling ti 4. Design reviews — re-review of designs of suspect components and modules. p 5. Extension of system test — improvement of test suites and extension of testing schedules to allow thorough final test execution.
  • 4. • Because of the special QIP activities, the p product ship date was delayed one p y month.• As a result more than 250 field defects result, were found and removed.• The field quality of the product, evidenced by field defect arrivals reported in later y p years, improved significantly.