A business process role is mapped to a use case actor.

业务流程角色映射到用例参与者。

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A swimlane is a process role, which is usually assigned to a group of users.

泳道代表一个流程角色，它通常被分配给一个用户组。

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A swimlane is a process role, which is usually assigned to a group of users.

泳道代表一个流程角色，它通常被分配给一个用户组。

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