[OASIS Issue Tracker] Commented: (TOSCA-14) Policy Language(s)

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    [ http://tools.oasis-open.org/issues/browse/TOSCA-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=30029#action_30029 ] 

Richard Probst commented on TOSCA-14:
-------------------------------------

The question of whether to support multiple policy language approaches, or to select one, or even to invent a new one just for TOSCA, was considered during the preparations for submission to OASIS. The charter of this TC reflects the results of that discussion:

The following items are specifically out of scope of the TOSCA specification: ...
6. The emphasis of any particular policy definition language or mechanism. 

So it is out of charter for this TC to select or invent a policy language for TOSCA. We already agreed we would support multiple policy language approaches in TOSCA 1.0. A strong tie to WS-Policy is not appropriate; a strong tie to any single policy approach is not appropriate.

One could imagine a TOSCA 2.0 spec that specifies a policy language. But we should not start work on that until TOSCA 1.0 is done.

> Policy Language(s)
> ------------------
>
>                 Key: TOSCA-14
>                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-14
>             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
>          Issue Type: Sub-task
>          Components: Spec
>            Reporter: Frank Leymann 
>
> During review of the proposal to resolve issue TOSCA-3 a discussion about policy languages came up. See the following meeting notices:
> http://www.oasis-open.org/apps/org/workgroup/tosca/download.php/45574 
> Some TC members felt that a strong tie to WS-Policy is not appropriate. There are other approaches to define policies that are relevant for particular domains. Thus, this sub-task should review such other approaches and propose how to define policies in TOSCA.  Alternatives might be (i) to support multiple approaches, or (ii) to invent a new TOSCA policy language that abstracts the policy approaches considered to be relevant for TOSCA.

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