An assumption is a factor that is considered to be true for planning purposes; however, it has not been proven or demonstrated. An assumption log is simply a place to log all assumptions and track the validation of each one.

We make project assumptions out of necessity. They allow us to continue forward with planning without checking the validity of every single fact. If we weren’t able to make assumptions, it would be difficult to make any progress with planning.

Capturing the assumption is only part of the work. Next, we must verify whether or not the assumptions are true. If we made an assumption during planning that is correct, there is nothing further to do. If we made an assumption that is incorrect, it’s likely that the project plans will need updated.

Left unverified, assumptions pose risk to the project; hence, the assumptions log is part of the risk management plan.

Who Creates the Assumption Log?

An assumption log is created by the project manager.

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