Portfolio, Programme and Project Offices (P3O ) describes how to build effective governance structures for managing portfolios, programmes and projects that is tailored to the needs of the organisation. The publication looks at the different types of office that may exist in a P3O structure, the roles necessary to manage the functions and services carried out within a P3O and some of the key techniques and tools they will use. The guidance is illustrated with real world examples and case studies. It answers the question posed by Senior Management - "why have P3Os and what value do they add to the organisation?" There is guidance for building a business case, illustrated with an example, and funding models for set-up and ongoing costs and discusses the value of performance measures. The book describes how to scope and set up a suitable P3O model within an organisation and looks at typical lifecycles of P3O models.