我们将描述每个主要的TCF组件，说明它们的角色、功能和相关数据值。
We'll describe each of the major TCF components, explaining its role, function, and related data values.
所谓的事例就是产品中执行功能的描述，通常陈述于特性支持什么样的用户角色以及它能提供什么样商业价值的术语中。
A story is a description of functionality to be implemented in the product, often stated in terms of what user roles the feature supports and what business value it offers them.
角色定义：用文字描述系统功能，和系统所需的服务。
Actor definitions: a textual description of the requestors of services provided by your system, and services provided to your system.
通过用例建模，描述对系统感兴趣的外部角色及其对系统的功能要求。
By modeling use-case, UML can describe the external roles that are interested in system and the requirement of function of system.
借由将系统组织成描述不同角色和功能的图层，图层图表有助于您更轻松地了解、重复使用和维护程序码。
By organizing your system into layers that describe distinct roles and functions, a layer diagram can help make it easier for you to understand, reuse, and maintain your code.
描述应用程序角色的功能。
第四，分别以不同用户角色出发，通过系统运行截图及其对应功能分析，详尽的描述了职称评审系统的实现情况。
Fourth, users in different roles, through the system and its corresponding features shot, a detailed description of the title assessment system for the situation.
第四，分别以不同用户角色出发，通过系统运行截图及其对应功能分析，详尽的描述了职称评审系统的实现情况。
Fourth, users in different roles, through the system and its corresponding features shot, a detailed description of the title assessment system for the situation.
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