Workflow Patterns with JOpera

This page presents a set of Quicktime screen movies showing the workflow patterns currently supported by JOpera.

Click on the links below to see JOpera running each of the workflow patterns.
All of these movies are made by running JOpera and grabbing screenshots of what a user would normally see while monitoring the execution of a workflow.

• Sequential, Run tasks A, B, C, D one after another.
  
• Parallel Split. After A, run B1 and B2 in parallel.
• Synchronization. Wait for both A and B to finish, before running C.
• Simple Merge: run A xor B and merge the alternative flows in C.
• Exclusive Choice: After A, run B xor C xor None.
• Multiple Choice: After A, run B or C or Both B and C.
• Synchronizing Merge: After A, run B (followed by D) or C (followed by D) or Both B and C and D must wait for both.
• Multiple Merge: After A, run B (followed by D) or C (followed by D) or Both B and C, each followed by D, which is repeated twice.
• NOutOfMJoin. Demos with 2 out of 3 join. D is started as soon as one pair (AB, BC, AC) out of the three A, B, C tasks finishes.
• Arbitrary Cycle Note: Tasks B and D decrement the loop counter. This is a very fast operation and as a consequence they never change color in the movie.
• Cancel Activity: Cancel B or Do not cancel B.
• Cancel Case: Cancel A or Cancel B or Cancel C or Do not Cancel.
• Milestone: D only runs when the Milestone is active. If the milestone is already completed, D will be skipped.
• Implicit Termination. A process finishes when there is nothing left to be done. (trivial)
• Multiple Instances (Without Synchronization, Discriminator Synchronization)
• Multiple Instances (With A Priori Design-Time Knowledge) (trivial)
• Multiple Instances (With A Priori Run-Time Knowledge: Parallel, Sequential)

Note: To watch the movies, you must have the Quicktime Player installed.

Please refer to this website for more information on workflow patterns.