Roles and Functions
What the exam tests
This domain tests who does what in a P3O and the difference between functions (what the office does) and roles (who is accountable). Expect questions on the sponsor, head of P3O, office managers and CoE leadership.
Core rules
- The P3O sponsor provides mandate, funding and senior air cover; the sponsor is accountable for the office's continued value, not for every portfolio decision.
- The head of P3O (P3O manager) runs the office, owns the service catalogue and manages staff and performance.
- Portfolio, programme and project office managers lead their office's services within agreed remits.
- The CoE lead owns standards, method guidance, training and assurance capability, usually without line authority over delivery.
- Analysts and support staff perform planning, reporting, RAID, configuration, benefits and resource analysis.
- Use RACI or similar to clarify decision rights; keep accountabilities for delivery with portfolio, programme and project managers.
Worked example
A project office escalates a cross-project dependency to the programme office. The programme office coordinates the resolution; the portfolio office only becomes involved if the dependency affects portfolio prioritisation. This shows functions layered by remit, not a single all-powerful office.
Traps
Treating the sponsor as a full-time operator; giving the CoE delivery accountability; confusing a function with a job title; leaving role boundaries undocumented.