Overview of Database Projects

0 We are exploring the use of entity and object oriented data modeling techniques for managing CAD data.-entity oriented: data is organized into hierarchical structures which are strongly typed.-object oriented: strict control over the operations that can be applied to a particular type of entity (possibly with inheritance of operations from related types). These data modeling techniques are appropriate for CAD data because they are based on the notions of creating and manipulating hierarchically structured objects and this is exactly what is done during the mechanical design process.