Using Test Triggers for Improved Defect Detection

Using Test Triggers for Improved Defect Detection Charles P. Schultz, ASQ CSQE Global Software Group United States - Florida IEEE LATW’03

WHY DO YOU TEST? ,[object Object],[object Object],[object Object]

WHAT ARE YOUR RESULTS? ,[object Object],[object Object],[object Object]

SOME POSSIBLE REASONS... ,[object Object],[object Object],[object Object]

SOME ADDITIONAL CLUES... ,[object Object],[object Object]

DEVICE OPERATING SPACE Initialization Activate Post-Init Deactivate Pwrdn/Reset

DEVICE OPERATING SPACE Attention is focused here Initialization Activate Post-Init Deactivate Pwrdn/Reset

HOW CAN WE DO BETTER? ,[object Object],[object Object],[object Object],[object Object],[object Object]

WHY IS THIS SIGNIFICANT? ,[object Object],[object Object],[object Object],[object Object],[object Object]

HOW DOES THIS APPLY TO ME? ,[object Object],[object Object],[object Object],[object Object],[object Object]

TRIGGER COVERAGE MAP EXAMPLE ,[object Object],[object Object]

TEST EXAMPLE - CONFIGURATION ,[object Object],[object Object],[object Object],[object Object]

IS THAT ALL THERE IS? ,[object Object],[object Object],[object Object]

FAULT MASKING EXAMPLE ,[object Object],F R Initialization Activate Post-Init Deactivate Pwrdn/Reset

WHY ELSE USE TRIGGER PAIRS? ,[object Object],[object Object]

DELAYED FAULT EFFECT EXAMPLE ,[object Object],F E Initialization Activate Post-Init Deactivate Pwrdn/Reset

ARE THESE DEFECTS SIGNIFICANT? ,[object Object],[object Object],[object Object]

RECIPE FOR DEFECT TRIGGER TESTS ,[object Object],[object Object],[object Object],[object Object]

RECIPE FOR DEFECT PREVENTION ,[object Object],[object Object],[object Object]

WHEN CAN I START? ,[object Object]

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