有时它们提供相同或非常类似的数据和函数，尽管客户端的种类不同。
Sometimes they provide the same or very similar data and functions, albeit to different kinds of clients.
优先级：您的团队是否经常为此客户进行这种类型的项目？
Precedence: Does your team frequently perform this type of project for this client?
共有两种类型的契约：客户契约和基础契约。
There are two types of contracts: customer contracts and base contracts.
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