Developing and enhancing AT&T's products and services involves many disciplines and technologies (e.g., hardware, software, and firmware devices). Reviews and audits during the development process are among the tools that ensure that development projects produce products and services that meet customers expectations effectively and efficiently, and drive continuous quality improvement. The audits and reviews routinely used by projects include project management audits, software process assessments, technical reviews (e.g., architecture reviews), and postmortems. This article discusses the nature of these tools, their applications in the AT&T development community, and the lessons learned from the company's experience with them.