一个参与者可以是一个人或者代表一个或者多个人的角色。
An actor can be a person or a role that represents one or multiple people.
角色变为业务参与者或者拥有某个界面的业务工作者。
A role becomes a business actor, or a business worker with an interface.
您应该为每个人类参与者提供一组相关的角色（参见图2）。
You should have a set of associated personas for every human actor (see Figure 2).
真正重要的是参与者扮演的角色。
业务流程角色映射到用例参与者。
为了检验这一点，参与者被要求在自己是否能达到下面的这些角色要求进行打分。
To test this participants were then asked to rate themselves on whether they would be.
让每一个参与者都都扮演着重要的互相联系而非不可或缺的角色。
So that each actor plays an important dependent but not indispensable role.
所有参与者除了自身担任的特定角色外，也都是检查者。
All participants are inspectors, in addition to any specialized role they might have.
隐匿的乙肝病毒感染：是少许参与者还是角色扮演者？
Occult hepatitis B virus infection: Bit player or role player?
隐匿的乙肝病毒感染：是少许参与者还是角色扮演者？
Occult hepatitis B virus infection: Bit player or role player?
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