Object-Oriented Data Model
An OVUM report published in 1988 predicted that database systems adhering to an object-oriented data model as opposed to a relational data model would overtake relational database systems by the mid 1990s (OVUM, 1988). Although this clearly has not happened, there is no doubt that object-oriented concepts are influencing the development of information systems. As evidence of this many relational DBMS vendors are beginning to offer OO features and SQL3 (chapter 6) is reported to be addressing object-orientation. However, there is some confusion about what it actually means to be object-oriented. The present chapter attempts a brief discussion of this issue in terms of database systems.
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