This system use case can be used to articulate the concepts for the point-to-point transactional model and its variations for the architecture phase of a project.
此系统用例可以用于说明点到点事务模型的概念及其在项目的体系结构设计阶段的变化。
By the end of this project, you'll have an abstract model of your system, SQL code to build the database, and PHP wrappers for each table.
在结束项目时，您将拥有系统的抽象模型、构建数据库的SQL代码和用于每个表的PHP包装器。
Early in the project a use case model is made, containing a list of all actors (users or external systems) and use cases in the system, their names, and a brief description.
在项目的早期计划阶段，完成一个用例模型，它包含了所有角色的列表(用户或者外部系统)，以及系统中用例，它们的名字，以及一个简单的介绍。
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