Object-oriented models are advocated as good ways to describe semantic-rich application domains such as computer-aided design. We describe the role and limitations of conventional type-instance inheritance for modeling CAD data, and propose a new semantics based on instance-to-instance inheritance. New algorithms for object clustering, buffer management, and on-line back-up are described that exploit the new inheritance semantics for more efficient run-time performance.
Title
Inheritance in Computer-Aided Design Databases: Semantics and Implementation Issues
Published
1987-10-01
Full Collection Name
Electrical Engineering & Computer Sciences Technical Reports
Other Identifiers
CSD-87-377
Type
Text
Extent
22 p
Archive
The Engineering Library
Usage Statement
Researchers may make free and open use of the UC Berkeley Library’s digitized public domain materials. However, some materials in our online collections may be protected by U.S. copyright law (Title 17, U.S.C.). Use or reproduction of materials protected by copyright beyond that allowed by fair use (Title 17, U.S.C. § 107) requires permission from the copyright owners. The use or reproduction of some materials may also be restricted by terms of University of California gift or purchase agreements, privacy and publicity rights, or trademark law. Responsibility for determining rights status and permissibility of any use or reproduction rests exclusively with the researcher. To learn more or make inquiries, please see our permissions policies (https://www.lib.berkeley.edu/about/permissions-policies).