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This section establishes modeling conventions and guidelines to be followed during the development of the GEIA-STD-927 top level schema. The following is within the scope of this document: Modeling rules, conventions and guidelines for the GEIA-STD-927 top level schema. The following are outside the scope of this document: An introduction to information modeling; An introduction to the EXPRESS modeling language.

The purpose of this handbook is to provide the data modeler with the modeling conventions, philosophy and guidelines used during development of the GEIA-STD-927 schema; and the integration process used to integrate existing best-in-class standard data models into the GEIA-STD-927 schema. Most importantly, the handbook provides tailoring guidelines for the data modeler to use in applying the GEIA-STD-927 schema and mapping tables to a practical application for an existing program. The Handbook is organized into four sections: Data Modeling Guidelines, Data Model Usage Guide, Integration Procedure, and Schema Tailoring Guidelines