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| kazim |
 Posted: Thu Feb 21, 2008 1:14 am Post subject: diff bet activiyinstance and workitem |
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Apprentice
Joined: 15 Jul 2007
Posts: 31
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Hello All,
I am new to the IBM Workflow. I would like to know the differences bet ween activity instance and the workitem.
Thanks & Regards,
Kazim |
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| hos |
| Posted: Thu Feb 21, 2008 2:05 am Post subject: |
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Chevalier
Joined: 03 Feb 2002
Posts: 470
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Workitems are 'personalized copies' of an activity instance.
Means that each workitem is associated to a dedicated owner who has access privileges. |
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| kazim |
| Posted: Thu Feb 21, 2008 2:44 am Post subject: |
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Apprentice
Joined: 15 Jul 2007
Posts: 31
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Thanks hos for the reply.Do u mean activity instance contains workitems.
Thanks & Regards,
kazim |
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| jmac |
| Posted: Thu Feb 21, 2008 7:11 am Post subject: |
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Jedi Knight
Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
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A workitem, is "like" a pointer to the Activity Instance. This is what I think Volker (hos) is saying.
A little more background.
When a Process Instance is created, the entire process is instantiated, and ALL of the activity instances for that process are created.
As each "activity" comes ready, in most cases, the workitems for that Activity are created.
The workitem exists once the item becomes ready, the Activity Instance is there once the process exists.
My personal goal is to have a 1 - 1 between Activity Instances and Workitems
since the creation of workitems can be quite expensive.
If you have more specific questions, ask away.
_________________
John McDonald
RETIRED |
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| jefflowrey |
| Posted: Thu Feb 21, 2008 7:53 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Shouldn't you really be learning Process Server?
_________________
I am *not* the model of the modern major general. |
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| jmac |
| Posted: Thu Feb 21, 2008 8:21 am Post subject: |
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Jedi Knight
Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
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Without a doubt WPS is the workflow engine of choice today.
However, MQWF will be supported by IBM for at least another 4-5 years, so it is NOT going away today, and there is going to be needs for support going forward. I seriously doubt that we want to depend on just us old hands to do the necessary support until the product finally sunsets.
_________________
John McDonald
RETIRED |
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| jefflowrey |
| Posted: Thu Feb 21, 2008 8:27 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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_________________
I am *not* the model of the modern major general. |
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| kazim |
| Posted: Thu Feb 21, 2008 11:54 pm Post subject: |
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Apprentice
Joined: 15 Jul 2007
Posts: 31
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Thank you all for sharing knowledge and the information. I have now clear understanding on activity instance and workitem  .
Thanks & Regards,
Kazim |
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