Why PMBOK® Guide, 5th edition, is ISO-certified ?

A Guide to the Project Management Body of Knowledge (PMBOK® Guide) —Fifth Edition reflects the collaboration and knowledge of working project managers and provides the fundamentals of project management as they apply to a wide range of projects. This internationally recognized standard gives project managers the essential tools to practice project management and deliver organizational results. • A 10th Knowledge Area has been added; Project Stakeholder Management expands upon the importance of appropriately engaging project stakeholders in key decisions and activities. • Project data information and information flow have been redefined to bring greater consistency and be more aligned with the Data, Information, Knowledge and Wisdom (DIKW) model used in the field of Knowledge Management. • Four new planning processes have been added: Plan Scope Management, Plan Schedule Management, Plan Cost Management and Plan Stakeholder Management: These were created to reinforce the concept that each of the subsidiary plans are integrated through the overall project management plan.

Which ISO are you referring to?  The ISO is for international standards on various practices, whereas the PMBOK 5 manual is the very basic source for the PMP standards.  There are many other books through the PMI that get more detailed and specific depending upon the subject matter.  

Project Management Standards are not certified by ISO. To promote the project management profession, PMI volunteers and staff participate in the following international standards activities:

ISO/TC 258 Technical  - The ISO/TC 258 Project, Programme, and Portfolio Management Technical Committee develops standards related to project management, and continues the work started by ISO PC236 which developed ISO 21500. TC258 is has just published a standard on Portfolio Management (ISO 21504), and id developing standards for Governance of PPP and for Program Management, as well as a vocabulary for project management.

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The entire PMI credential system, which includes the PMBOK® Guide,5th edition, is ISO-certified.What that means in terms of ISO process is that the PMI framework is a process that enables

practitioners to manage projects with a high level of control. When a process is in ‘control’ as defined by ISO, the process is both predictable and repeatable. Therefore the PMBOK® Guide,5th edition defines a series of processes to control projects that give the project practitioner a high degree of predictability and repeatability in the process.

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