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how to reduce the cost of software testing

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My thoughts on how to reduce the cost of software testing

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how to reduce the cost of software testing

  1. 1. HOW TO REDUCE THE COST OF SOFTWARE TESTING ANNE-MARIE CHARRETT TESTING TIMES ! http://mavericktester.com @charrett
  2. 2. DON’T TEST @charrett
  3. 3. TESTING @charrett
  4. 4. @charrett
  5. 5. TESTING ASKS IS THAT PROBLEM SOLVED? - - Cem Kaner @charrett
  6. 6. @charrett
  7. 7. Software Testing is questioning a product in order to evaluate it —James Bach @charrett
  8. 8. DISCOVERY @charrett
  9. 9. @charrett
  10. 10. CHECKING • Limited Information • Doesn’t question • Needs to be extensive • Expensive to maintain @charrett
  11. 11. CALCULATOR EXERCISE • Imagine a calculator • You power it on • You type 2 + 2 = • What is the answer you see? • Is that the answer you expect? exercise by James Bach @charrett
  12. 12. WHEN 2+2 = 4 IS A FAIL • Smoke comes out of the calculator • It emits a screeching sound • a dancing bear moves across the screen • you get 0000000000004 • or the answer disappears after 2 seconds @charrett
  13. 13. TESTING IS A SKILLED ACTIVITY @charrett
  14. 14. HOW TO KNOW A TESTER • Modelling • Critical Thinker • Strategic Thinker • Understands Risk • Good Communication (vs a checker) @charrett
  15. 15. MAKING TESTING WORK FOR YOU @charrett
  16. 16. TRAPS for the UNWARY • Replace all testers with 1 automated tester • Outsource the problem • Hire developers instead of testers • Automate for quick tests not valuable tests • Attempt 100% Automation • Focus on tools instead of people @charrett
  17. 17. HOW TO REDUCE COST? @charrett
  18. 18. REMOVE WASTE @charrett
  19. 19. QUALITY & DONE • Developers perform checking • Testers perform Exploratory Testing • Testers assist developers in testing • Testers pair with developers • Testers review stories (3 amigos) @charrett
  20. 20. EXPLORATORY TESTING ! “a style of software testing that emphasises the personal freedom and responsibility of the individual tester to continually optimise the quality of his/her work by treating testrelated learning, test design, test execution, and test result interpretation as mutually supportive activities that run in parallel throughout the project @charrett
  21. 21. COST VS VALUE @charrett
  22. 22. TESTER JUMPER • Share testers between teams • Advise on Test Design • Involved in User Stories • Must be highly skilled • Advise on risk • Advise on heuristics @charrett
  23. 23. SKILL • Coach how to learn • Coach developers on how to test • Coach testers on how to ‘test’ @charrett
  24. 24. IDEAS ON TESTING • Reduce usage of costly license tools • Focus on excellent strategy and test design • Make checking a developer task • Everyone is responsible for quality • Invest in Exploratory Testing • Invest in quality automation (Less is More Heuristic) • Testers take on a coaching role • Pair Testers with Developers • Lightweight Regression Test Suite @charrett
  25. 25. BE SKEPTICAL • Challenge your consultants • • How do you know x is true • • How do you mean by x? Does it matter to you? Demand consultants who understand testing @charrett
  26. 26. THE FUTURE? @charrett
  27. 27. Thank you! Anne-Marie Charrett Testing Times ! Software Tester, Coach, Consultant ! Email: amcharrett@testingtimes.com.au @charrett

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