The book provides guidance for readers wishing to understand the power and benefits of a process approach, and process assessment. It guides the reader through the various parts of the standard in an understandable and practical manner. Various complementary standard and lifecycle models are explained, including a chapter on agile methodologies, especially Extreme Programming. Assessors will find useful reference material on assessments, assessor teams and assessor qualifications, and a comparison to CMMI and FAAiCMM. Managers will find guidance in selecting and applying process assessment to benefit their organizations.