A short phrase or label for each schedule activity used in conjunction with an activityidentifier to differentiate that project schedule activity from other schedule activities.
活动描述是一个短语或标签，与活动编码一起，用来区分不同的项目活动。
2
It would contain the same activityidentifier as Coordinator Ca, but when App2 registers for the Durable2PC protocol to its Coordinator, Cb, its request is forwarded directly to Coordinator Ca.
Because each human activity that is exposed by the portal is assigned to a task page definition, you need to have a unique Client UI identifier for each staff activity.