Getting Started
The Change Request Tool allows the management and documentation of
changes to a CIM-based schema. The tool manages two
classifications of schema, Final and Experimental.
A Final schema is guaranteed to be backward compatible with all
previous versions. That is, no CIM elements (qualifiers, classes,
properties, methods, etc.) will be removed or changed in a future
version of the Final schema. Thus, any software developed using CIM
elements from an earlier version of a Final schema is guaranteed to
work with all future Final schema versions. However, future Final
schema version may add new CIM elements. Doing so, will not break
backward compatibility. In fact, some CIM elements may be deprecated in
favor of the newer CIM elements.
In contrast, an Experimental schema offers no such guarantee. That is,
any CIM element that has the Experimental qualifier may change in a
future Experimental version. Conceptually, the Experimental schema is
a superset of the Final schema. That is, the Experimental schema
contains all classes in the Final schema but will also contain
additional Experimental classes. It will also contain experimental
versions of a Final class that contain experimental properties or
methods.
Typically, a new class is first added to the Experimental schema beaus
changes are often made while the designers of the class refine its
intended use over a period of time. Eventually, the designers will
decide to remove the class or classify it as Final. Addi tonally,
schema
users may want to add new properties or methods to a Final class. To do
so, these experimental elements are first added to the experimental
version of the class in the Experimental schema with the Experimental
qualifier. Again, changes may be made to these experimental properties
or methods over time, but eventually, the designers will either decide
to remove the experimental element or classify it as Final.
The Change Request Tool creates a pre-formatted XML file that can be
programmatically applied to change the schema. Other Help topics
explain
how to use the Change Request Tool to fill in the required information,
which depends upon which task you wish to perform. Once filled in, the
Change Request file can be viewed in a browser. An example Change
Request might look like

Here is the rest of the Change Request

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