[OASIS Issue Tracker] Updated: (TOSCA-140) WD02 - Constraining the capabilities of multiple node templates

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     [ http://tools.oasis-open.org/issues/browse/TOSCA-140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Derek Palma updated TOSCA-140:
------------------------------

    Assignee: Derek Palma

> WD02 - Constraining the capabilities of multiple node templates
> ---------------------------------------------------------------
>
>                 Key: TOSCA-140
>                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-140
>             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
>          Issue Type: Bug
>          Components: Profile-YAML
>            Reporter: Derek Palma
>            Assignee: Derek Palma
>
> In section 12 Grouping Node Templates, a membership construct is used to associate scaling constraints to node template instances. This construct has the following weaknesses:
> 1)	The members are not constrained, i.e. the types of the members are not specified
> 2)	The constraints enforced on the members are not defined. I.e. there is no reference to or ability to infer a schema for the constraints
> A "type" approach which supports strong validation is more desirable. So far we have this for other aspects of the DSL so why not strive for strong validation for this construct too. 

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