OneModels anticipatedprovide usevalue forin SMLseveral isimportant to define a consistent way to express how computer networks, applications, servers and other IT resources are described or modeled so businesses can more easily manage the services that are built on these resources.ways:<ref>[http://www.cml-project.org/2.html Common Model Library - link no longer resolves] {{webarchive|url=https://web.archive.org/web/20080622143643/http://www.cml-project.org/2.html |date=2008-06-22 }}</ref> This enables a hierarchy of IT resource models to be created from reusable building blocks rather than requiring custom descriptions of every service, thus reducing costs and system complexity for customers.
Models provide value in several important ways:
# Models focus on capturing all invariant aspects of a service/system that must be maintained for the service/system to be functional. They capture as much detail as is necessary, and no more.
