Ant Organisation Ltd

Workflow

Concept: Activity instance

Activity within a running workflow instance.

Activity instances represent steps that can be executed within a workflow instance. Each activity instance is started by an incoming transition from a previous activity instance. It then initiates its action based on information from its activity definition and the current case document and waits for a response. When a response is received the activity instance triggers the correct outgoing transition to the next activity.

Each activity instance has:

		Status, the status of the activity instance (not started, started, finished or failed);
		Next escalation date, the date and time that the timeout transition should be fired if no response is received for the activity;
		State, state of the activity (recording information such as how many times a transition has entered this activity);
		Responsible, the user or group who is currently responsible for this task;
		Started and finished dates, dates and times when the activity was started and when a response was received;
		Result, result of the activity if the activity has finished.

An activity instance is contained within a thread instance and segment intance that represent the thread definition and segment definition within the workflow instance.