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Archives of the TeradataForum
Message Posted: Fri, 23 Feb 2001 @ 22:26:05 GMT
| Subj: | | Re: CWM, JOLAP |
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| From: | | Steve Hummel |
Re: CWM --
I assume in this context, CWM means Common Warehouse Model: quote from
www.intelligententerprise.com/000908/decision.shtml
The recent Object Management Group ratification of the Common Warehouse Model (CWM) specification, however, represents a major
step toward improved data, application, and process integration. Enterprises struggling to capture and synchronize data definitions,
simplify inter-application data mobility, and track information as it flows through their information supply chain eventually will
benefit from metadata standards such as CWM. Through mid-2001, exclusive metadata interchange standards in the data warehouse and
analytical application domain (Informatica's MX2, Informix's MetaStage, and the Microstrategy-NetGenesis API, for example) will
dissipate in favor of CWM or its opposing Open Information Model (OIM) standard from the Meta Data Coalition. During this time, even
the Object Management Group's contributing vendors will struggle to fully implement CWM, instead offering only XMI (CWM's XML data
type definition) interchange product features and "vendor enablement kits," including libraries of Java interfaces that abstract away
direct XMI coding.
By 2002, the first fully CWM-based technologies will appear, but customers should remain indifferent to the underlying schema of
products as long as the products support accepted metadata interchange standards. (See Meta Group Research Note ADS835, "Common Data
Models Are for Commoners.") By 2004, robust federated metadata networks will emerge that provide ubiquitous metadata interchange
among information supply-chain tools and include publish/subscribe along with traditional repository services, such as impact
analysis, devoid of the need for a central metadata repository.
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