Project management office (PMO)

Is a management structure that standardizes project governance processes and facilitates the sharing of knowledge, resources, methodologies, tools and techniques.

Different types of PMOs
Supportive - Provides a consultative role
Controlling - Provide support and require compliance
Directive - Controls the projects

Primary functions of a PMO

• Managing shared resources across all projects administered by the PMO
• Developing project management methods 
• Coaching, mentoring, training and oversight
• Monitoring compliance 
• Developing and maintaining project polices, procedures, templates
• Coordinating communication across projects 

PMBOK reference pages 11,12

Reference video