Data Supporting Activity Chart Generation
For task containing Statechart underneath. Indicates when a task is in non-stable state, i.e., need to perform another step. Might be 8/16/32 bits, according to the no. of tasks having a Statechart underneath. And Indicates active/ inactive activities might be 8/16/32 bits, according to the no. of activities requiring active bit.
This is if either the activity is procedural or its parent has a control-activity, or it is flagged as “Guarded Activation” (=”yes”).
When activity has non double-buffered data (user data, conditions) associated with.
When activity has a double-buffered data type (user data, conditions, events) associated with it.