Service specifications define a contract between consumer requisitions and provider services that map needs to capabilities.

服务规范定义了消费者请求和生产者服务之间的契约。

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We can actually formalize this by creating a diagram that shows how the service specifications would be used to fulfill the service Collaboration contract.

我们能够通过创建一个图来实现形式化，这个图展示了如何使用服务规范完成Service Collaboration契约。

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