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Risk Based Testing - Revisited

Risk Based Testing - Revisited. Sreeram Kishore Chavali 9 July 2002. Agenda. Examples of Risks Customizing test plan template Discussion and Q&A. Business Risks. System forces user to spend more time than he feels appropriate System Crashes resulting in loss of business Corrupts data

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Risk Based Testing - Revisited

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  1. Risk Based Testing - Revisited Sreeram Kishore Chavali 9 July 2002

  2. Agenda • Examples of Risks • Customizing test plan template • Discussion and Q&A

  3. Business Risks • System forces user to spend more time than he feels appropriate • System Crashes resulting in loss of business • Corrupts data • Delivers slow performance • Incorrect Documentation

  4. Software Bugs – Risks Examples • Risk Level 5: • System crashes • Cannot Enter Data • Loss of Data • Inconsistent Data accepted • Invalid data accepted • System becomes unusable • Mostly Positive Test Cases fall under this Risk Level. 100% chances of user facing this scenario

  5. Software Bugs – Risks Examples • Risk Level 4 • Test Scenarios that are not always encountered • System does not work properly at boundary conditions • Invalid data and invalid states of application • System is usable but causes sporadic problem and gives an impression of being unstable and incomplete • > 50% chances of user encountering this scenario

  6. Software Bugs – Risks Examples • Risk Level 3 • Mostly negative test cases • Cause application to behave incorrectly • Chances of user encountering this scenario is less probability • < 30% possibility of user encountering this situation • Application is usable and working

  7. Software Bugs – Risks Examples • Risk Level 2 • Any test scenario with less than 10% probability of user encountering this scenario • Application behavior not consistent but there are workarounds • Acceptable discrepancies

  8. Software Bugs – Risks Examples • Risk Level 1 • Remote GUI Defects: Accelerator not working in a not so frequently used dialog • Almost 0% probability of user finding the problem • Even if user finds the problem, it is something user would not worry about reporting this issue.

  9. Risk Matrix

  10. Test Plan Vs Test Execution • Test Plan enables us to explain test scenario, assumptions, scope and other details • Needed in a paragraph format • Use Word format to specify • Will consists of set of cases • Cannot be used in metrics • Not changed frequently • Test Case: A case independent of test scenario with a defined expected outcome • Atomic entity • Can be used in metrics • Can be changed or removed

  11. Customize the Template to suit needs • Customize Template to make it usable • Still Achieve Basic objectives • One Sheet of all test cases • Easy to filter, report and monitor • Easy to add/modify case details and status

  12. Realizing Benefits with Risk based test cases and Excel Sheet format • Test Execution by Risk • Quantifying progress • Understand Test Progress and dynamics of developments • Concurrent update of Status • Continuous addition/modification/deletion of cases

  13. Thank You

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