From requirements to release criteria: specifying, monitoring, and demonstrating product quality

Specifying quality requirements is an excellent first step to predictable, managed product quality, but it is just the beginning. Quality specification, quality planning, data generation, quality monitoring, and quality reporting all work together to ensure that quality levels are known throughout the project. Quality release criteria are a good way to ensure that product quality drives interim milestone releases and the final product release. Requirements and release criteria are mutually influential, and quantified requirements are an essential part of this process.