1 project, program and portfolio definitions:
Project: To create a unique product, service or outcome for temporary work. Temporary refers to the project have a clear start and end. Project to create products, services or results do not generally have temporary.
Item sets: a set of interrelated and coordinated management of the project is. Projects focused on the project by producing a common outcome or the overall ability of each other.
Portfolio: In order to facilitate management to achieve strategic business objectives together the project, program and other work. The project portfolio is not necessarily dependent on each other or are directly related.
(2) project management, program management and project portfolio management
Project management: the knowledge, skills, tools and techniques used in project activities to meet project requirements.
Program management: a unified set of project coordination and management, the project sets to achieve the strategic objectives and interests.
Project Portfolio Management: In order to achieve specific strategic business objectives, one or more centralized project portfolio management, including identification, sorting, authorization, management and control project, program and other related work.