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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

Risk Based Testing - Revisited

Sreeram Kishore Chavali

9 July 2002

agenda
Agenda
  • Examples of Risks
  • Customizing test plan template
  • Discussion and Q&A
business risks
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
software bugs risks examples
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
software bugs risks examples5
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
software bugs risks examples6
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
software bugs risks examples7
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
software bugs risks examples8
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.
test plan vs test execution
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
customize the template to suit needs
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
realizing benefits with risk based test cases and excel sheet format
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
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