The document discusses test design and provides tips for becoming a better test designer. It explains that test design involves coming up with a well-thought-out and broad set of tests based on the application and schedule. Both over-testing and under-testing should be avoided. It also emphasizes practicing testing, collaborating with others, learning about the application, and finding new testing ideas to expand one's toolbox. The best test tool is noted as being one's own brain.

1. Test Design for EveryoneAlan PageMicrosoft

2. Here, Test This!

3. “Test Design” is what Testers Do

4. What is test design?

5. Simple: Come up with some tests

6. Better(?): Come up with a well thought out and broad set of tests for the given context (based on application, schedule, etc.)

7. Another Take:Create an optimal set of tests that finds the maximum amount of customer facing issues possible with a minimum of over-testing and under-testing

8. “Over Testing” and “Under Testing”

9. Application

10. ApplicationTesting Effort

11. ApplicationTesting EffortUnder Testing (stuff you forgot to testor didn’t know to test)(potential)Over Testing

18. bool Validate(string sideName) try {sideVal = Convert.ToUInt16(inputVal); if (sideVal < 1) {MessageBox.Show(sidename+ “must be greater than 0”, ...); return false;} } catch (OverflowException) {MessageBox.Show(sideName + "must be less than 65536", ...); return false; } catch (FormatException) {MessageBox.Show(sideName + "must be an integer value, ...); return false; }}

19. bool Validate(string sideName) try {sideVal = Convert.ToUInt16(inputVal); if (sideVal < 1) {MessageBox.Show(sidename+ “must be greater than 0”, ...); return false; } } catch (OverflowException) {MessageBox.Show(sideName + "must be less than 65536", ...); return false; } catch (FormatException) {MessageBox.Show(sideName + "must be an integer value, ...); return false; }}In EnglishThree different types of errors:Zero or lessBigger than 65536Non-numbersAny other input is testing the same thing

20. ApplicationTesting EffortReduceOver Testing(don’t test the same thing multiple times)Reduce Under Testing(miss less)

21. How do you become a better Test Designer?

22. You need ideas!Ideas you have used beforeNew ideas to tryIdeas suited for this productIdeas suited to your release schedule…and you need to know what to look for

23. Why Is it so Hard?

24. You Don’t Know What You Don’t Know Read Philip Armour’sThe Five Orders of Ignorance

25. All you can use is what you knowHammers are useful…

26. …but not everything is a nail

28. What you’ve already heard about test design

29. http://www.satisfice.com/glossary.shtml

30. The “what” has been covered

31. Let’s focus on the “how”

32. You need a Toolbox

33. Bigger is Better

35. What kinds of tests do you write

36. New InformationFalse PositiveFalse NegativeNo Information

37. Useful Tests?

38. Useful Test Provide High Levels of “New Information”

39. “Usefulness” depends on context

40. Some general guidelines:The first time you run a test it (almost) always provides new informationIf you run the same test the same way again, it may or may not provide new information

41. Some general guidelines (continued):Varying your tests gives them a higher chance of providing new information (randomization, data driven tests, “smart monkeys”, model-based testing, etc. all help here)

42. Examples / Practice

44. Test This:Add or Remove Contacts

45. Mind Mapping

47. What about adding a contact with a blank name?

51. 1234

54. How to get better at Test Design

55. Practice, practice, practicePractice testing – be curiousCollaboratehttp://testing-challenges.orgWeekend Testing (http://weekendtesters.com)LearnHow does your application work?Find new testing ideasStudy critical thinkingRead…anything

56. Make your tests useful…and notice when they’re not useful

57. The Best Test Tool of All Time

58. Your Brain (of course)

59. Be A Great Test Designer(and be a great tester too)

60. http://angryweasel.com/bloghttp://twitter.com/alanpage

61. CreditsOpening slide pattern - some rights reserved by km6xo“Scrap metal” – some rights reserved by MAG (Mines Advisory Group)Ideas - Some rights reserved by orkboiImpossible triangle - some rights reserved by yui.kuboHammer – some rights reserved by Noel C. HankamerNail - some rights reserved by crd!Hammer / screw - some rights reserved by justinbaederTomatoes - some rights reserved by lucianvenutianToolbox - some rights reserved by Austin ampersand ZakBig Toolbox - some rights reserved by Fuschia FootBrain - Some rights reserved by biologycorner