Radicore Forum
Fast Uncompromising Discussions. FUDforum will get your users talking.

Home » RADICORE development » Workflow » Workflow with optional transition? (Workflow with optional transition?)
Workflow with optional transition? [message #3785] Tue, 02 July 2013 05:55 Go to next message
jarg is currently offline  jarg
Messages: 2
Registered: July 2013
Location: Oporto
Junior Member
Dear all,

I'm playing a bit with Radicore and trying to model a very very simple workflow, in which one of the transitions is OPTIONAL.

Specifically, we are trying to model the following (please check file attached for an easier to understand description):

There is 1 place:
P1

There are 2 transitions:
T1
T2

There are 5 arcs:
Start -> T1, Inward, Or-Split (Implicit)
Start -> T2, Inward, Or-Split (Implicit)
T1->P1, Outward, Sequential
P1->T2, Inward, Sequential
T2->End, Outward, Sequential

The idea is to make T1 optional. Ie, one can run T2 directly and the workflow finishes. But if T1 is ran, then T2 must ran afterwards too.
Obviously we are getting the error: There is more than 1 type of INWARD ARC for transition 'T2'

Do you have any suggestion about how to model this workflow topology?

Thank you,
Augusto
  • Attachment: wf_v1.PNG
    (Size: 11.78KB, Downloaded 604 times)
Re: Workflow with optional transition? [message #3786 is a reply to message #3785] Wed, 03 July 2013 08:27 Go to previous messageGo to next message
AJM is currently offline  AJM
Messages: 2277
Registered: April 2006
Location: Surrey, UK
Senior Member
If you have an OR-Split you must also have an OR-Join. Because you are splitting at the START point to provide one of two possible arcs you must merge those two arcs either at or before the END point. This means introducing a new transition T3, but it can point to the same transaction as T2. This is shown in the attached diagram.

Re: Workflow with optional transition? [message #3787 is a reply to message #3786] Wed, 03 July 2013 09:53 Go to previous messageGo to next message
jarg is currently offline  jarg
Messages: 2
Registered: July 2013
Location: Oporto
Junior Member
Thanks for your answer, but I have two more questions if you don´t mind.

The first one is:

1. Why we can´t model more than 2 inwards or split (implicit) arcs from one place? what is the reason for that?

2. we are trying to model the following (please check file attached for an easier to understand description):

There are 6 arcs:
Start -> Approve, Inward, Or-Split (Implicit)
Start -> Reject, Inward, Or-Split (Implicit)
Approve->End, Outward, Sequential
Reject-> Rejected, Outward, Sequential
Rejected -> Undoreject, Inward, Sequential
Undoreject -> start, Outward, Sequential

We use arcs OR-Split(Implicit) again, but in this example we don´t need to use or-join.
This example works fine, so the question is, is it really needed or-join arcs after the OR-SPlit (implicit) arcs?
Re: Workflow with optional transition? [message #3788 is a reply to message #3787] Wed, 03 July 2013 10:17 Go to previous message
AJM is currently offline  AJM
Messages: 2277
Registered: April 2006
Location: Surrey, UK
Senior Member
The valid routing combinations are shown in http://www.tonymarston.net/php-mysql/workflow.html#routing, and working examples of these combinations are included in the Radicore download. These are documented in http://www.radicore.org/demo/workflow/docs/workflow-examples .html

After you build a workflow you must validate it before it can be used, and the error messages should be self explanatory.

The workflow shown in your diagram loops back on itself, so I suggest try to model it on Example 5 iterative routing.


Previous Topic: Workflow implementation question
Next Topic: Problem with an Add1 as the starting task of a transaction
Goto Forum:
  


Current Time: Wed Jan 26 14:28:32 EST 2022

Total time taken to generate the page: 0.01328 seconds