首先，我們來看掌握PMO職責的小TIPS，以下是PMBOK的原話：
A primary function of a PMO is to support project managers in a variety of ways which may include, but are not limited to:
Managing shared resources across all projects administered by the PMO;
Identifying and developing project management methodology, best practices, and standards;
Coaching, mentoring, training, and oversight;
Monitoring compliance with project management standards, policies, procedures, and templates via project audits;
Developing and managing project policies, procedures, templates, and other shared documentation (organizational process assets); and
Coordinating communication across projects.

如何把PMO的職責都記住呢？因為這里很可能會考一個選擇題！
方法就是：PMO
其中P是指policies, procedures；以及across all projects
M是指methodology，mentoring，Monitoring
O是指Coordinating
記住關鍵詞，PMO的職責就記住了！