Announcement: PPM Is Launching “PMP Concept Learning Series”

PPM is proud to announce the launch of our new learning series “PMP Concepts”. This series of blog posts and videos include concepts and comparisons frequently tested on during the PMP, CAPM, and PMI-RMP exams.

Each “Concept” publication provides a brief description and definition, followed by practical examples.


1. Cost of conformance vs cost of non-conformance
2. Qualitative risk analysis vs quantitative risk analysis
3. Quality assurance vs quality control
4. Analogous vs parametric estimating
5. Common causes of variance vs special causes of variance
6. Precision vs accuracy
7. Projects vs Operations
8. Project Life Cycle vs Product Life Cycle
9. Assumptions vs Constraints
10. Functional Organizations vs Projectized Organizations
11. Project SOW vs Business Case
12. Enterprise Environmental Factors vs Organizational Process Assets
13. Brainstorming vs Nominal Group Technique
14. Work Package vs Activity
15. Lead vs Lag
16. Effort v Duration vs Elapsed Time
17. Critical Path vs Critical Chain
18. Total Float vs Free Float
19. Fast-Tracking vs Crashing
20. Budgetary Estimate vs Phased Estimate
21. ROM Estimate vs Definitive Estimate
22. Cost Estimate vs Budget
23. Quality vs Grade
24. Avoid vs Transfer vs Mitigate
25. Enhance vs Share vs Exploit
26. Sensitivity Analysis vs Expected Monetary Value
27. Deming vs Juran vs Crosby
28. Control Chart vs Run Chart
29. Histogram vs Pareto Chart
30. RAM vs Organization Chart
31. Interactive vs Push vs Pull Communication
32. Residual Risk vs Secondary Risk
33. Fallback Plan vs Contingent Response Strategy
34. Fixed Price Contracts
35. Cost Plus Contracts
36. Develop vs Manage Project Team
37. Quality Control vs Verify Scope
38. Corrective vs Preventive Actions vs Defect Repairs
39. Cost Variance vs Cost Performance Index
40. Schedule Variance vs Schedule Performance Index
41. Estimate at Completion vs Estimate to Complete
42. Budget at Completion vs Variance at Completion

If you have any others you would like to see, please let us know!


  1. Maddison on June 15, 2015 at 2:29 pm

    Thank you…this series has been a tremendous help in studying for my PMP!

  2. Glenn on April 2, 2016 at 12:12 pm

    These were great!

  3. Ramesh on July 25, 2017 at 2:40 am

    Thanks a lot! still reading topics.. thought of thanking you in between 🙂

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