您的用 例模型由用例图，加上支持文档组成：也就是，用例说明及角色描述（如果您选择将它们编制为文件）。
Your use-case model is composed of the use-case diagram(s) plus any supporting documentation: i.e., use-case specifications and actor descriptions (if you choose to document them).
模型还返回用户的新闻类型选择（//rss/userinput/newstype）和检索的新闻标题及 URL（//rss/headlinelist/headline）。
The model also returns the user's news type choice (//rss/userinput/newstype) and the retrieved news headlines and URLs (//rss/headlinelist/headline).
首先，我们简要讨论了业务流程模型的关注重点、通常选择使用它的用户(及原因)、它如何适应整体流程。
First, we briefly explained what business process modeling is all about, who typically does it (and why), and how it fits into the overall process.
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