Issue - 273 - Removing capability of <empty> to execute prior to createInstance

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Issue - 273 - Removing capability of <empty> to execute prior to createInstance

Status: received
Date added: 2 May 2006
Date submitted: 02 May 2006
Submitter: Mark Ford
Description: An <empty> activity is listed as one of the acceptable "non-start" activities that may be performed prior to or simulataneously with a "start activity". This text was introduced with the resolution for Issue 81.

This was discussed during the April 24-28 meeting and the general consensus was to remove <empty> from the list. Since this is a normative change, a new issue is being opened for any further discussion.

As discussed during the meeting, allowing an <empty> to execute prior to a start activity seemed out of place since all of the other activities were container activities in which the start activity would have been embedded. Furthermore, allowing an <empty> to execute prior to the start activity introduces the possibility that outbound links from the <empty> might fire and trigger the execution of other types of activities prior to the execution of the start activity. Based on these issues, the proposal is to remove the <empty> from this list.
Submitter's proposal: The proposed change is in Section 10.4

From:

> NO other "non-start activities" but scope, flow, sequence or empty activities may potentially be performed prior to or simultaneously with a "start activity".

To:

> NO other "non-start activities" but scope, flow, or sequence activities may potentially be performed prior to or simultaneously with a "start activity". 

Changes: 2 May 2006 - new issue

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