[OASIS Issue Tracker] Commented: (SCAPOLICY-1) Block Intent Inheritance

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    [ http://tools.oasis-open.org/issues/browse/SCAPOLICY-1?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=29415#action_29415 ] 

David Booz commented on SCAPOLICY-1:
------------------------------------

Deferred to 1.2 to be discussed in the context of capabilities support, on Nov 7,2009 Telecon 

> Block Intent Inheritance
> ------------------------
>
>                 Key: SCAPOLICY-1
>                 URL: http://tools.oasis-open.org/issues/browse/SCAPOLICY-1
>             Project: OASIS Service Component Architecture / Policy (SCA-Policy) TC
>          Issue Type: Bug
>          Components: 1.2 Spec
>    Affects Versions: V1.2
>            Reporter: David Booz
>
> http://lists.oasis-open.org/archives/sca-policy-comment/200906/msg00006.html
> Bullet 4 in section 4.12.1 says that to calculate the required intent
> set for an element "add any intents found in the @requires attributes of
> each ancestor element in the element's structural hierarchy." This
> means, for example that any intents attached to a component apply to all
> its services and references. Thus, if 'confidentiality' specified at
> the component level, 'confidentiality' applies to all its services and
> references.
> But this may not be what is always desired. A shopping site may wants
> all its ordering and billing messages encrypted but there may not be any
> need to encrypt its search messages. Of course, the confidentiality
> intent can be applied to individual services/references to cover this
> usecase but we may also want to add the ability to control inheritance.
> For example at the higher level we may want to say "this applies to all
> descendants except ...." or on an element we may want to say "this
> element does not inherit from its ancestors ".

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