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Subject: [OASIS Issue Tracker] Commented: (TOSCA-22) TOSCA Versioning


    [ http://tools.oasis-open.org/issues/browse/TOSCA-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=30765#action_30765 ] 

Thomas Spatzier  commented on TOSCA-22:
---------------------------------------

Some suggestions that came up in the TC meeting on July 5th:

Versioning could be done using the targetNamespace in which NodeTypes, RelationshipTypes, ServiceTemplates etc. are defined. This is done in other specifications as well.
Another option would be to introduce a simple string attribute that indicates the version.

The problem with the string attribute would be that it introduces more complexity in identifying a type, because the identity of a type would then be a combination of {targetNamespace; id (i.e. local name); version}. Using a namespace-based versioning scheme would just require {targetNamespace; id} as identity of a type.

It seemed like there was some consensus in the call, that we should try to not make versioning overly complicated but stick to a simple scheme in TOSCA v1.0.

> TOSCA Versioning
> ----------------
>
>                 Key: TOSCA-22
>                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-22
>             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
>          Issue Type: Improvement
>          Components: Spec
>            Reporter: Paul Lipton 
>            Assignee: Tobias Kunze 
>
> Originally sub-issue 7 in TOSCA-20, called "NodeTypes should have a "Version" field ," no consensus was made on this at the 6/7/12 meeting. This lack of consensus was probably the result of unclear scope. Reconsidering on 6/14, the TC has decided that the scope of the versioning issue is greater than this, e.g., do we mean of model / version of entities / etc., and requests Tobias, as original proposer of the "seed issue" in TOSCA-20, to take ownership of this issue. 
> See minutes from both these meetings. Others are invited to contribute/comment, of course. 

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