The ultimate basis of the SDSFIE content will be controlled through the Unified Modeling Language (UML). A starting point for this effort is Release 2.500 and Release 2.600. The existing content of these two releases has been modeled in an effort. Each of these preliminary models is available for review. These models are provided for information only, as current tools and the SDSFIE Library are capable of creating the schemas necessary for standard compliance. A viewer is provided to show the class structures, framework, package diagrams, and attribution in these Releases.