服务具有语法、语义和QoS特征，所有这些都必须进行建模；正式的接口契约必须涵盖的比web服务描述语言(Web Services Description Language, WSDL)的多。

A service has syntax, semantics, and QoS characteristics that all have to be modelled; formal interface contracts have to cover more than the Web Services Description Language (WSDL) does.

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WSFL主要建立在Web服务描述语言(WSDL)和用于描述单独Web服务的xml语法的基础之上。

WSFL builds heavily on the Web Services Description Language (WSDL), an XML-grammar for describing individual Web Services.

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它能作为定义数据描述语言的语言，例如标记语法或词汇、交换格式和通讯协议。

It can be used as a language for defining data descriptive languages, such as markup grammars or vocabularies and interchange formats and messaging protocols.

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