Assumption
Project Management Professional glossary · Project Management Professional
Definition
A factor considered to be true, real, or certain without proof or demonstration.
Assumption in plain English
On the PMP, labels are traps if you only memorize them. Assumption is a decision tool: it tells you what to notice, what to ignore, and which next move is legal for the situation on the stem. Hold onto this precise job description: A factor considered to be true, real, or certain without proof or demonstration. On a stem, name whether Assumption is about timing, ownership, measurement, or delivery style — then eliminate the answer that borrows a cousin concept from the wrong phase.
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