Object Relational Database Management System (ORDBMS)
The Windchill system uses a database to store structured and unstructured business data. The database manager is typically run on the same host as the Windchill servers, but at larger sites it may run on a dedicated host and be accessed remotely from one or more Windchill server hosts.
The use of an ORDBMS is leading-edge, but Windchill does not push the technology past reasonable bounds of usability and safety. Windchill leverages support for very large objects and object references (bigger BLOBs and object-ID navigation capability). It does not rely on the more futuristic capabilities of complex data types where, through extensions (object types, cartridges, and so on), the DBMS tries to understand the structure and meaning of Java objects.
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Windchill uses the object relational features of the database server to store data objects. In order to maintain the integrity of the associations among stored objects, users and administrators should avoid using vendor tools to directly manipulate database data. Directly changing data in the database could compromise data integrity. This does not preclude the use of such tools for standard database administration, which does not alter or change the values stored in the tables.
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