Design Databases Represent design components as objects(generally geometric objects);the connections between the objects indicate how the design is structured. Simple two-dimensional objects:points,lines,triangles, rectangles,polygons. Complex two-dimensional objects:formed from simple objects via union,intersection,and difference operations. Complex three-dimensional objects:formed from simpler objects such as spheres,cylinders,and cuboids,by union,intersection, and difference operations. Wireframe models represent three-dimensional surfaces as a set of simpler objects. 12 Database System Concepts,5th Ed. 24.12 @Silberschatz,Korth and SudarshanDatabase System Concepts, 5 24.12 ©Silberschatz, Korth and Sudarshan th Ed. 12 Design Databases Represent design components as objects (generally geometric objects); the connections between the objects indicate how the design is structured. Simple two-dimensional objects: points, lines, triangles, rectangles, polygons. Complex two-dimensional objects: formed from simple objects via union, intersection, and difference operations. Complex three-dimensional objects: formed from simpler objects such as spheres, cylinders, and cuboids, by union, intersection, and difference operations. Wireframe models represent three-dimensional surfaces as a set of simpler objects