1. Test Effort Estimation

2. Why Test Effort Estimation Expected Testing outcome Effort

3. Estimate of what ??

4. Resources Time Skill

5. Who does the Test Estimation?

6. “Test Manager”

7. Steps in Test Effort Estimation 1 2 3 4 5 6 7

8. Identifying the Components to be Tested 1

9. Common Components GUI Controls Screens Functions Reports

10. Identifying a Test Strategy 2

11. On what basis test strategies are formed?

12. Based on the components indentified

13. TestStrategy1 Functionality1 TestStrategy2 TestStrategy3 Functionality12 TestStrategy4

15. Repetitive activities3

17. Identifying test condition

18. Developing Test cases

19. Generating Test Data

20. Reviewing test condition, test case, test data

21. Executing test cases

24. Web applications

25. Desktop applications

26. Medium complexity

27. Two tier/three tier application

28. High complexity

30. Infrastructure

31. Resources

32. Expertise requires3 4

33. The estimate of test effort Forwarded To Management Team Accept Reject

34. Preparing test plan based on inputs 6

35. Test plan is prepared based on: Scope of testing Risk involved Test completion criteria Deliverables at different stages Scope of defect management Requirements for the test environment

36. Validating the estimate at the end of project All assumptions are re-validated Done after the project Determines if the estimate is correct

38. Inaccurate estimation

39. Delay in project delivery

40. Lack of proper test planning

41. Lack of testing expertise

42. Selection of wrong test data

44. Constructive Cost Model (COCOMO)

47. External Outputs

48. External Inquires

49. Internal Logical Files

51. COCOMO Model It categorized software products into three classes Organic systems “refers to simple projects developed by a few experienced team” Semidetached systems “refers to intermediate projects between organic and embedded” Embedded systems “refers to complex projects”

53. a1, a2, b1, b2 are constants for different categories of software products

54. Tdev is the estimated time to develop the software in ‘months’

55. Effort is the total development effort required to produce the software in ‘programmer months’.a2 b2

56. Benefits of TPA Analyst independent Tests quality characteristics

57. Thank you