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Agenda Items. Estimating IntroductionTools and Techniques OverviewRough-Order-of Magnitude (ROM) EstimatesIntermediate Estimates.Definitive Estimates.Help and ReferencesAdditional Questions. Training Goals. To understand Estimating Tools and Techniques.To learn enough about the various methods to use them effectively.To know where you can access more information and supporting materials..
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1. Putting the Project Pieces Together Estimating Training
2. Agenda Items Estimating Introduction
Tools and Techniques Overview
Rough-Order-of Magnitude (ROM) Estimates
Intermediate Estimates.
Definitive Estimates.
Help and References
Additional Questions
3. Training Goals
4. Estimating Introduction An approximate judgment or opinion regarding the value, amount, size, weight, timing, etc.
Based on documented assumptions.
5. OIS Primary Estimating Types Rough-Order-of-Magnitude (ROM) Estimates ( + - 50%)
Intermediate Estimates (+ or – 30%)
Definitive Estimates (+ or – 20%)
6. Rough-order-of-magnitude (ROM) Approach
7. Rough-Order-of-Magnitude --When is itAppropriate?
8. ROM Estimating Techniques
9. Parametric Estimating
10. ROM Parametric Estimating Spreadsheet
11. Parametric Estimating Steps
12. Analogous Estimating
13. Analogous Estimating Steps
14. Do NOT use Rough-Order-of Magnitude…
15. Intermediate Approach
16. Intermediate—When should I use it? What is the purpose of the estimate?
When is an estimate needed for the project?
What level of precision is needed?
What is the estimate intended to cover?
17. Intermediate Estimating Techniques
18. Parametric Estimating (Intermediate)
19. Intermediate Sample Project Percentages
20. Parametric Estimating Steps
21. Delphi Estimating
22. Delphi Estimating Steps
23. Consensus
24. Definitive Approach
25. Definitive Estimate--When is it Appropriate?
26. Definitive Estimating Techniques
27. PERT Estimating
28. PERT Estimating
29. PERT Estimating--Prerequisites WBS
PERT Analysis Formula
Sources for estimates
30. PERT Estimating Steps
31. Wrap It Up!
32. Help and References
34. Additional Questions