the centralized management of the processes, methods, and technologies used by project managers and project management offices (PMOs) to analyze and collectively manage current or proposed projects based on numerous key characteristics.

a set of standard terminology and guidelines (a body of knowledge) for project management.

The (PMI, legally Project Management Institute, Inc.) a U.S.-based not-for-profit professional organization for project management.

an internationally recognized professional designation offered by the Project Management Institute.

The project management triangle (called also the triple constraint, iron triangle and project triangle) is a model of the constraints of project management.

A project management office (usually abbreviated to PMO) is a group or department within a business, government agency, or enterprise that defines and maintains standards for project management within the organization.