记录在设计新的或修订的产品/服务时要满足的要求。指定此类产品/服务的技术、质量和成本要求，以及人体工程学、安全和服务要求。确保执行设计的人员能够理解所提供的信息，包括示例、轶事参考和插图。 Documenting requirements to meet in the design of new or revised products/services. Specify technical, quality, and costing requirements, as well as ergonomic, safety, and servicing requirements for such products/services. Ensure the information presented can be understood by the personnel executing the design and includes examples, anecdotal references, and illustrations.