PMBOK Guide Explained: Knowledge Areas, Process Groups and What Changed

Quick answer

The PMBOK Guide is PMI’s body of knowledge — process groups and knowledge areas (ed.6) shifting to principles and performance domains (ed.7): a map of what PMs do, not a method.

The structure (ed.6)

5 process groups (initiate, plan, execute, monitor/control, close) × 10 knowledge areas (scope, schedule, cost, quality, resources, comms, risk, procurement, stakeholders, integration).

What changed (ed.7)

From processes to principles — 12 principles and 8 performance domains; less ‘follow the process’, more ‘think in systems’.

What it’s for

The PMP exam’s base, and a shared vocabulary — a reference, not a methodology.

Using it

Take the vocabulary and the checklists; don’t implement all 49 processes — tailor to the project.

Bottom line

The PMBOK Guide is PMI’s body of knowledge — process groups and knowledge areas (ed.6) shifting to principles and performance domains (ed.7): a map of what PMs do, not a method.

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