In this chapter we consider the issues associated with one approach to integrating
object-oriented concepts with database systems, namely the Object-Oriented Database
Management System (OODBMS). The OODBMS started in the engineering and design
domains and has recently also become the favored system for financial and telecommunications
applications. The OODBMS market is small in comparison to the relational
DBMS market and while it had an estimated growth rate of 50% at the end of the 1990s,
the market has not maintained this growth