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PECB ISO 21502 Lead Project Manager Exam - Topic 3 Question 3 Discussion

Posted by Carla on Jun 30, 2026 at 12:47 PM

According to ISO 21502, what does a project plan include, among others?

Suggested Answer: C

The correct answer is C. Both A and B. A project plan should include, among other elements, the project scope, risks, assumptions, and constraints. The project plan is the integrated reference document that describes how the project will be executed, monitored, controlled, and closed. Scope defines what the project is expected to deliver and the boundaries of the work. Risks identify uncertain events or conditions that could affect project objectives. Assumptions describe factors considered true for planning purposes, even though they may later require validation. Constraints define limiting conditions, such as fixed deadlines, budget ceilings, regulatory obligations, resource limits, contractual requirements, or technology restrictions. These elements are interconnected: assumptions and constraints influence scope, risk exposure, schedule, cost, quality, and resource planning. A project plan that includes only scope and risks would omit the planning logic behind them. A plan that includes only assumptions and constraints would not adequately define the deliverables or uncertainty profile. Therefore, both sets of information are necessary for sound integrated project management.

Reference topics: project plan, scope, risks, assumptions, constraints, integrated planning.


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21 comments · newest first
DE
Denise 2 days ago
But without assumptions, how can you plan effectively?
MA
Malinda 7 days ago
I feel like A is more critical though. Risks are key!
BA
Barb 12 days ago
Agreed! A solid project plan needs all those elements.
NO
Norah 17 days ago
I think it’s C. Both A and B are essential.
DA
Dacia 23 days ago
Just remember, a comprehensive plan is crucial.
CO
Colton 28 days ago
I’m nervous about this question. It’s tricky!
LA
Lavelle 1 month ago
True! A and B together give a complete picture.
AN
Antonio 1 month ago
I’m leaning towards C too. It covers all bases.
FE
Felix 1 month ago
But without assumptions, how can you plan effectively?
FL
Florinda 2 months ago
I feel like A is more critical though. Risks are key!
MI
Micah 2 months ago
Agreed! A solid project plan needs all those elements.
EL
Elenor 2 months ago
I think it’s C. Both A and B are essential.
MA
Marjory 2 months ago
Not sure about that, seems like a lot to include.
JO
Johnetta 2 months ago
Totally agree, both A and B are essential!
DE
Derrick 2 months ago
Wait, are assumptions really part of the project plan?
ST
Stanton 3 months ago
I think it’s both A and B for sure.
CA
Carmelina 3 months ago
Definitely includes scope and risks!
MA
Marjory 3 months ago
I’m pretty sure the answer is C, since a comprehensive project plan should cover all those aspects to ensure clarity and manageability.
GA
Gayla 3 months ago
I’m a bit confused about this one. I know scope and risks are important, but I can't recall if assumptions and constraints are explicitly mentioned in the standard.
ST
Stephanie 3 months ago
I think I practiced a question similar to this where both A and B were included in the correct answer. It feels like they both play a crucial role in project planning.
UL
Ula 4 months ago
I remember that ISO 21502 emphasizes the importance of including both scope and risks in a project plan, but I'm not entirely sure if assumptions and constraints are also mandatory.
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