RE: [wsdm][uplat]meta data definiton

["Sedukhin, Igor S" <Igor.Sedukhin@ca.com>]

I think you forgot to include an example that we talked about : XML Schema is the metadata about XML data, and schema annotations are metadata about XML Schema.


-- Igor Sedukhin .. (igor.sedukhin@ca.com)
-- (631) 342-4325 .. 1 CA Plaza, Islandia, NY 11788

-----Original Message-----
From: M. Homayoun Pourheidari [mailto:homayoun@hp.com] 
Sent: Thursday, November 13, 2003 9:36 PM
Cc: wsdm@lists.oasis-open.org
Subject: Re: [wsdm][uplat]meta data definiton

Thanks Fred,

Here is the new text for meta data.

Cheers,
H.
---
what?

Meta data is generally defined as data about data. In the context of management, it is additional information about all the components of an information model that describe a managed resource.  These components include: attributes, operations, events, interface categories, and the service representing the managed resource.  Meta data may include descriptive information about the context, quality and condition, or characteristics of the data.  Meta data can be introspected  at design time and runtime.

why?

In IT management, it is important to describe data in richer ways so that it can ultimately be linked to the goals that drive the existence of the source of this data.  For example, information like limitations, purpose, context, quality, and characteristics of management data as an associated piece of that data will help to describe how the data is related to the objectives of an IT environment.  Meta data is one of the means through which such descriptions are provided.

Meta data values can include units, volatility, modifiability, aliases, policies, duration, etc. For example, Meta data values for attributes can include units, volatility, modifiability, aliases, and Meta data values for operations can include end state.

In the management space, the manageability capabilities are likely to be provided by a number of different providers. That is, the management space is likely to be an integration issue. To aid the manageability consumer in integrating the information from these dissimilar sources, the meta data is of increased importance.



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