BANGALORE, INDIA: The move towards object database management systems (ODBMSs) is being driven by a number of important forces in the computing industry. These forces include the requirement to manage new types of complex data often associated with graphical, client-server applications, the desire to persistently store objects manipulated in object programming languages, and the need to manage this information in an environment that provides the traditional benefits of database management systems (DBMSs).

Application developers have historically turned to one of two choices to store information: flat files or relational database management systems (RDBMSs). While flat files let programmers store arbitrarily complex data, they lack the ability to coordinate concurrent access, manage data distribution, and provide transactional integrity. Relational databases offer these traditional database benefits, but their table-oriented data model is unable to adequately model complex data and relationships, and is unable to store programmatic objects in their native form.

Object databases offer the best of both worlds: the flexibility to store arbitrarily complex data objects combined with the power of true database management systems. Thus, for organizations managing complex data, using objectoriented programming languages, or both, the decision to move from conventional to object database technology is often surprisingly simple.

More complicated, however, is the selection of a particular ODBMS. Understanding the subtleties of the various products on the market can be time consuming and difficult. Since object databases are a relatively new technology, it can be hard for prospective users to determine which issues are relevant to consider during ODBMS evaluation. Together, these factors can make ODBMS evaluation a bewildering experience for the prospective user.

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