The relationship can be derived from the model by following the formal traces starting from a business goal, to the business use case realization, to the use case, and finally to the User Goal.
该关系可以源自于模型，通过从业务目标开始，到业务用例实现，到用例，并且最终到用户目标的形式化的追溯。
The goal of a user goal-level use case is analogous to a unit of business value.
用户目标层次上用例的目标，与业务价值的一个单元相类似。
A use case represents a goal from the end user perspective.
用例表示来自最终用户视角的目标。
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