Overall Project Risk: Effect of Uncertainty on the Entire Project
PMBOK v8 Definition
Overall risk is the effect of uncertainty on the portfolio, program, or project as a whole. Overall risk may arise from everything that is uncertain or unknown in the project, including individual risks. Responses to overall project risk are the same as for individual threats and opportunities, though responses are applied to the overall project rather than to a specific event. If the overall risk to the project is too high, the organization may choose to cancel the project.
This concept is part of the Risk Management knowledge area and relates to the Identify Risks process and overall project risk assessment activities.
Why It Matters for the Exam
The PMI exam frequently tests your ability to distinguish overall risk from individual risks. Questions often present scenarios where you must decide whether a risk affects the entire project (overall risk) or a specific objective (individual risk). Expect situational questions in the "Risk Management" domain where you must identify the correct response approach for overall versus individual risks.
Key Points to Remember (for the exam)
- Definition Core: Overall risk = effect of uncertainty on the entire portfolio, program, or project (not on specific objectives)
- Source: Arises from everything uncertain or unknown in the project, including individual risks
- Response Application: Responses are applied to the overall project, not to a specific event
- Critical Decision: If overall risk is too high, the organization may cancel the project
- Risk Types Confusion: Overall risk is NOT the same as an individual threat or opportunity—it is the aggregate effect
- Relationship to Issues: Issues have already occurred; overall risk is about potential future uncertainty
- Key Distinction: Individual risks affect specific objectives; overall risk affects the project as a whole
Typical PMI Exam Example
A project team identifies 23 individual risks across schedule, cost, and quality. The project manager analyzes the combined effect of all uncertainties and determines that the project has a 40% probability of exceeding the approved budget by more than 30%. The sponsor reviews this analysis and decides to terminate the project.
Question: What type of risk did the project manager assess? Answer: Overall project risk (effect of uncertainty on the project as a whole)
PMI Exam Traps
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Trap: Confusing overall risk with individual risk Reality: Overall risk = effect on the entire project; individual risk = effect on specific objectives (schedule, cost, quality)
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Trap: Thinking overall risk responses are applied to specific events Reality: Responses to overall risk are applied to the overall project, not to specific events
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Trap: Confusing overall risk with an issue Reality: Overall risk is about potential future uncertainty; an issue has already occurred and may require immediate action
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Trap: Assuming overall risk can always be managed or reduced Reality: If overall risk is too high, the organization may choose to cancel the project—this is a valid response
Important PMI Connections
| Related Concept | Relationship Type | Exam Attention Point |
|---|---|---|
| Individual Risk | Component of overall risk | Overall risk includes individual risks but is the aggregate effect on the whole project |
| Issue | Opposite (occurred vs. potential) | Issues have occurred; risks (including overall risk) are potential future problems |
| Threat vs. Opportunity | Types of risk | Both threats and opportunities contribute to overall project risk |
| Project Cancellation | Possible outcome | If overall risk is unacceptable, cancellation is a legitimate organizational response |
| Risk Register | Related artifact | Individual risks are documented in the risk register; overall risk is assessed separately |
Quick Review Questions
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A project manager evaluates the combined uncertainty across all project areas and determines the project has a high probability of failure. What type of risk is being assessed?
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What is the key difference between applying a response to an individual risk versus applying a response to overall project risk?
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An organization reviews the overall risk assessment for a new product development project and decides to cancel the project. Is this a valid response to overall risk?
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A team member reports that a vendor has already missed a critical delivery date. Is this an overall risk, an individual risk, or an issue?
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Overall risk arises from everything that is uncertain or unknown in the project, including what specific category of risks?
PMBOK v8 Reference
Section 2.7.2 - Identify Risks (Process Group: Planning, Knowledge Area: Risk Management)
Note: The concepts of overall risk, individual risks, issues, and their distinctions are covered within the risk management framework of PMBOK v8, particularly in the sections discussing risk identification and risk categorization.