The importance of understanding and modeling these actors and their goals lies in the fact that they are typically involved in the process of purchasing the software products.
对这些参与者及其目的进行理解并建模的重要性依赖于这样一个事实，那就是他们是否参与到了购买软件产品的流程中。
Part III will focus on deployment management and software configuration management purchasing issues, and Part IV will look at issues surrounding process and project management purchases.
第三部分会把重心集中在部署管理和软件配置管理的购买主题，在第四部分将看到关于过程及项目管理购买的主题。
If you're considering purchasing open source software, you should check whether its license is included on OSI's list.
如果你正在考虑购买一款开源软件，你应当检查它的许可证种类是否包含在OSI的列表中。
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