[OASIS Issue Tracker] Created: (TOSCA-52) Consolidation of grouping concepts in TOSCA

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Consolidation of grouping concepts in TOSCA
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                 Key: TOSCA-52
                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-52
             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
          Issue Type: Improvement
          Components: Spec
            Reporter: Thomas Spatzier 
            Assignee: Thomas Spatzier 


With recent changes in wd-11 (<BoundaryDefinitions>) TOSCA provides a powerful way of composing ServiceTemplates based on requirements/capabilities. So one ServiceTemplate for a certain group of nodes can be created and re-used in larger context.
The TOSCA spec also includes a <GroupTemplate> element for grouping of topology elements.

It would be desirable to only have one way of grouping elements for re-use purposes. Since the new concept based on requirements/capabilities and BoundaryDefinitions is more powerful ad has clearer semantics, I would propose to remove GroupTemplate. This simplifies the spec and avoids alternative ways of grouping things.

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