After defining the IT service, you come to the assemble phase for design, specification, creation, and testing.
定义IT服务以后，您将到达设计、规范、创建和测试的组装阶段。
The contract is the formal specification, its what the design has to meet and its this that should be used for all forms of testing
契约是正式的规格说明，设计必须满足它，而且各种形式的测试也都应该使用它。
For developing a software product, the development process is divided into5stages:Requirements Analysis &Specification, Design, Coding, Testing, and Maintenance.
就开发软件而言，开发过程分成5步：需求分析及详细计划书，设计，编程，测试和维护。
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