This document provides an overview of the GAMP 5 guide for computerized systems compliance. GAMP 5 aims to build upon existing good practices to help ensure computerized systems are fit for intended use and meet regulatory requirements. It provides a pragmatic, risk-based approach and guidance on key lifecycle activities like planning, specification, verification and change management. Quality risk management is emphasized, including identifying risks, assessing their severity and probability, and controlling high risks. The guidance is flexible and can be applied based on a system's complexity, risks and other factors.