It's also possible to only expose a subset of the process language, creating very simple domain specific process languages, for example to specify approvals in a document management system.
也可以只暴露过程语言的子集，创建非常简单的领域特定过程语言，例如文档管理系统中用来指定批准的语言。
In the case of digital signatures, you might want to be sure that when you send a document through a messaging system it has not been corrupted or tampered with in the process.
如果希望保证通过消息系统发送的文档在传递过程中没有被破坏或篡改，那么就要用到数字签名。
The business Analyst begins to document requirements, using business process models to describe functional requirements of the system as well.
业务分析人员开始编制需求，还利用业务过程模型来描述系统的功能需求。
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