2.2. The 7 Performance Domains
💡 First Principle: Performance domains are the areas of continuous attention a project manager holds simultaneously throughout the project's life — refined from 8 to 7 in PMBOK® 8 by folding "Development Approach & Life Cycle" and "Planning" considerations into the other domains rather than treating them as standalone.
PMBOK® 8's 7 performance domains are: Governance, Scope, Schedule, Finance, Stakeholders, Resources, and Risk. Unlike the ECO's People/Process/Business Environment domains (which describe what PMI tests), performance domains describe what a project manager continuously manages — they're overlapping, interacting areas of focus rather than a sequential checklist.
Notice the direct line from performance domains to ECO tasks: Governance maps to Business Environment's "define and establish project governance"; Finance maps to Process's "plan and manage finance"; Risk maps to Business Environment's "plan and manage risk." The performance domains are the PMBOK® 8 vocabulary, and the ECO tasks are the testable behaviors built on that vocabulary — this is exactly why Phase 2 exists before Phases 3-5.
⚠️ Exam Trap: Confusing performance domains (PMBOK® 8's conceptual areas) with ECO domains (People/Process/Business Environment, the exam's scoring categories) — they are different frameworks that happen to share some vocabulary. A question never asks you to name "the 7 performance domains" directly; it tests whether you can apply the thinking behind them.
Reflection Question: Pick any one performance domain (say, Stakeholders). Which ECO tasks, across all three domains, touch that same area of concern?
