The first defines the abstract interface of a service, represented by port types, which contain collections of operations (that is, business functions).
第一部分定义了服务的抽象接口，用端口类型（port type）表示，它包含操作集合（也就是业务功能）。
The interface specification (IfS) describes the business syntax of the operations of a service strictly in terms of the abstract data types used by the operations.
接口规范 (IfS)从操作所使用的抽象数据类型方面严格描述服务的操作的业务语法。
The interface specification (IfS) describes the business syntax of the operations of a service strictly in terms of the abstract data types used by the operations.
接口规范 (IfS)从操作所使用的抽象数据类型方面严格描述服务的操作的业务语法。
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