Editing Common warehouse metamodel (section)

== Support for the CWM ==

=== Submitters of CWM specification ===
While the Object Management Group owns the standard for CWM, some companies are considered co-submitters of the CWM specification.  The following companies were listed as co-submitters to the v1.1 specification:
* [[IBM|International Business Machines Corporation]]
* [[Unisys Corporation]]
* [[NCR Corporation]]
* [[Hyperion Solutions Corporation]]
* [[Oracle Corporation]]
* [[UBS AG]]
* Genesis Development Corporation
* Dimension EDI

=== Compliance with the CWM specification ===
Software vendors claiming CWM support differ in the degree to which they comply with CWM.  Some were co-submitters of the specification, and are actively using the OMG trademark in marketing literature.  Other vendors have expressed support for CWM or claim they have products that are "CWM-compliant."

Questions about compliance are addressed within the specification itself.  Chapter 18 in both the 1.0 and 1.1 specification list required and optional compliance points.

The Object Management Group has a list of CWM implementations, but it is unclear how this list is maintained.<ref>[http://www.omg.org/technology/cwm/ Catalog Of OMG Modeling And Metadata Specifications]</ref>

===Interoperability of CWM tools===
Compliance with the CWM specification does not guarantee tools from different vendors will integrate well, even when they are "CWM-compliant". The OMG addressed some of these issues by releasing patterns and best practices to correct these problems in a supplementary specification, [[CWM Metadata Interchange Patterns]]<ref>{{Cite web|url=http://www.omg.org/mda/specs.htm#CWM|title=MDA Specifications &#124; Object Management Group}}</ref>