[occi-wg] Attribute descriptions

[Michael Behrens]

I think this is good input...indicators do look interesting (let the server do the work for you).
Let's get this on the agenda/calendar to discuss further.

Gary Mazz wrote:
> Hi,
>
> Sorry this took so long, had a family medical emergency which took up most of last half of week and the weekend.
>
>  There is one or two items about attributes that I believe needed to be clarified. As well as one or two items that are potential for conflicts. I listed them below, they will 
> warrant  a discuss and vote to see which capability we would consider supporting.
>
> 1) I believe we need a definition for attributes in the document... The definition needs to qualify the role of attributes and properties of the attributes.
>
> 2) Differentiate between OCCI Resource attributes and Attributes defined by Mixins.
>
> 3) Mixins may reference attributes defined in external schemas, DMTF's CIM for example. We need a way to filter attributes sourced from external schemas and hopefully not 
> overload OCCI clients, servers or other information management vehicles (ie templates). This capability may also be required for the converse case, identifying attributes that 
> will be used, all other will be ignored. This use case may also valid for OCCI Resource defined attributes.
>
> 4) The OCCI server should have the ability to override attributes defined in external schemas and OCCI Resources. The overridden attributes warrants a discrete definition, not to 
> confuse externally defined attributes with server defined attributes. These attributes may fall into the class of "calculated attributes".
>
> 5) Indicators: An Indicator is threshold based logic used to show whether a metric is operating within a set of limits. Indicators may be polled by the client using traditional 
> client/server technologies or pushed to the client by the server through asynchronous methods.
>
> What an indicator looks like is interesting.. we need to determine the following:
>
> a) Do Indicators contain more then one threshold?
> b) Can Indicators send or trigger asynchronous  events, if yes, what does it look like ?
> c) Should each Indicator have a name ?
> c) How is MetricName/Indicator naming schema defined ? What does the canonical form look like ?
>
> cheers,
> gary
>
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