[OASIS Issue Tracker] Commented: (TOSCA-27) DeploymentArtifact Refinements

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    [ http://tools.oasis-open.org/issues/browse/TOSCA-27?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=30718#action_30718 ] 

Derek Palma commented on TOSCA-27:
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This is a good point. I purposely did not try to address this because the upcoming proposal around Requirements/Capabilities will provide the mechanism environmentConstraints were originally intended for. Once this proposal is posted we can determinate if the semantics truly subsume environmentConstraints.

> DeploymentArtifact Refinements
> ------------------------------
>
>                 Key: TOSCA-27
>                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-27
>             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
>          Issue Type: Improvement
>          Components: Spec
>            Reporter: Derek Palma
>            Assignee: Derek Palma
>
> In describing SugarCRM we encountered the following issues with DeploymentArtifacts:
> 1) It's important to be able to reference DeploymentArtifacts as top level entities for reuse. This avoids having multiple copies of the same DeploymentArtifact used in different places.
> 2) Subclassing of DeploymentArtifacts is useful to allow specialization while supporting polymorphism. E.g. special types of archives, VMImages, Disks, etc.

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