Define personae and workflows. 定义角色和工作流。

I have introduced the customer organization into the course by using different personae. 我通过运用不同的人物将这家客户机构介绍到课程中来。

Players present dramatic dramatis personae to audience, and yet can't overstep the limit of music. 演员既要充分地把所扮演的人物生动形象地展现给观众，但又不能超出音乐上带来的局限。