Every architectural project under AIA B101 moves through five distinct phases of basic services: Schematic Design, Design Development, Construction Documents, Bidding/Negotiation, and Construction Administration. Each phase has a specific purpose, a defined set of deliverables, and a corresponding share of the architect's total fee. The traditional benchmark splits that fee roughly as 15/20/40/5/20 across the five phases.

For the PcM exam, you need to know more than just the names. You need to understand what decisions get locked in at each phase, why the fee split is weighted so heavily toward Construction Documents, and how phase transitions affect project risk. A firm that burns through its CD fee during DD has a serious cash flow problem. A firm that skips meaningful SD exploration ends up redesigning during CDs at far greater cost.

This topic connects directly to staffing plans, project scheduling, and profitability tracking. The phase structure determines when you need senior designers versus production staff, when consultants ramp up, and when owner approvals become critical gates. It also shapes how firms track earned value and forecast workload across multiple concurrent projects. Getting the phase framework right is the backbone of managing an architectural practice. Miss it, and the numbers fall apart.

The exam tests this topic at a practical level. You will see scenarios involving scope creep during CDs, firms underpricing CA, and fast-track delivery compressing or overlapping phases. The five-phase model is also the reference point for alternative delivery methods like IPD and CM at Risk, which modify how and when work gets done. Knowing the traditional structure cold makes those variations easier to reason through.