By splitting off the schema and sequences from other portions of your database, you can make future upgrades to OpenEdge and your application more transparent to the user. One of the operations that takes place during most major version changes of OpenEdge is a metaschema change. The metaschema is a set of definitions for the internal structure of data. Your schema definitions create the rules by which data can be added or modified within your application. Metaschema serves the same purpose for the definition of your schema. By eliminating information other than your schema definitions and sequences from the metaschema area, it reduces the task of updating this information.