对角色、目标建模，其中角色是定义谁来管理上述这些对象，目标是对上述对象执行操作所必须满足的。

Model the roles that define who manages these objects, and the goals that must be met by executing tasks on these objects.

youdao

对角色、目标建模，其中角色是定义谁来管理上述这些对象，目标是对上述对象执行操作所必须满足的。

Model the roles that define who manages these objects, and the goals that must be met by executing tasks on these objects.

youdao