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The Default Activity Wizard creates a new Activity container within the workflow design canvas.
Activities act as the containers for events within a process. An Activity within a process can potentially contain Client Events, Server Events or Inter Process Communication (IPC) events. The business logic includes concepts like: a) who must be involved in the Activity, and b) are there any pre-requisites that must be met before workflow participants can start with the Activity. Activities are important components in the process because they represent points where decisions are to be made, data is to be delivered, or actions are to be carried out. One of the most important properties of Activities is the business rules associated with the activity. These Activity Rules represent the tools used to build business logic into the activity. For an activity to be useful, it must have at least one event associated with it.
The Default Activity can only host one Client event, which performs one Client event action. This approach categorizes tasks into single steps where one task is handled per Default Activity. Where multiple steps of Client Event interaction are required in a process, the tasks are linked together by successive default activities each containing one client event.