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Semantics of CAD objects for generalized databases

Authors:

D. Rieu,

G. T. NguyenAuthors Info & Claims

DAC '86: Proceedings of the 23rd ACM/IEEE Design Automation Conference

Pages 34 - 40

Published: 02 July 1986 Publication History

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Abstract

This paper presents some fundamental issues related to the design and implementation of CAD oriented database systems. Integrating databases in sophisticated CAD environments requires functionalities usually not provided by existing systems, e.g. relational or entity-relationship systems. For instance, consistency controls have to provide richer and more flexible features than the former “take it or leave it” paradigm.

The basic aspects are examined here with respect to the nature of CAD objects, to their consistency states and to their dynamicity. The nature of CAD objects concerns the complexity of their structure and of their relationships. The state of CAD objects concerns their completeness with considerations to their consistency. Finally, the dynamicity of CAD objects concerns the evolving nature of their structure and of their property values, i.e. their behavior, with connections to versions and representations.

These concepts are defined and detailed with examples drawn from VLSI circuit design. The functionalities of a prototype CAD database system offering new solutions in these areas are presented, calling upon object-oriented concepts and logic-programming. It is currently being tested for VLSI circuit design in cooperation with the CAD Research Dept at CNET.

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Cited By

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Nguyen GRieu D(1992)Multiple object representationsProceedings of the 1992 ACM annual conference on Communications10.1145/131214.131239(197-204)Online publication date: 1-Apr-1992
https://dl.acm.org/doi/10.1145/131214.131239
Chung MKim SSmith R(1991)An object-oriented VHDL design environmentProceedings of the 27th ACM/IEEE Design Automation Conference10.1145/123186.123328(431-436)Online publication date: 3-Jan-1991
https://dl.acm.org/doi/10.1145/123186.123328
Mueller-Glaser KBortolazzi JThomas D(1989)An approach to intelligent assistance for the specification of ASIC design using objects and rulesProceedings of the 26th ACM/IEEE Design Automation Conference10.1145/74382.74461(472-477)Online publication date: 1-Jun-1989
https://dl.acm.org/doi/10.1145/74382.74461
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Information

Published In

DAC '86: Proceedings of the 23rd ACM/IEEE Design Automation Conference

July 1986

835 pages

ISBN:0818607025

Chairman:
Don Thomas
IBM, Thomas J. Watson Research Center, Yorktown Heights, NY

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IEEE Press

Publication History

Published: 02 July 1986

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DAC '86 Paper Acceptance Rate 124 of 300 submissions, 41%;

Overall Acceptance Rate 1,770 of 5,499 submissions, 32%

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Nguyen GRieu D(1992)Multiple object representationsProceedings of the 1992 ACM annual conference on Communications10.1145/131214.131239(197-204)Online publication date: 1-Apr-1992
https://dl.acm.org/doi/10.1145/131214.131239
Chung MKim SSmith R(1991)An object-oriented VHDL design environmentProceedings of the 27th ACM/IEEE Design Automation Conference10.1145/123186.123328(431-436)Online publication date: 3-Jan-1991
https://dl.acm.org/doi/10.1145/123186.123328
Mueller-Glaser KBortolazzi JThomas D(1989)An approach to intelligent assistance for the specification of ASIC design using objects and rulesProceedings of the 26th ACM/IEEE Design Automation Conference10.1145/74382.74461(472-477)Online publication date: 1-Jun-1989
https://dl.acm.org/doi/10.1145/74382.74461
Nguyen GRieu D(1987)Expert Database Support for Consistent Dynamic ObjectsProceedings of the 13th International Conference on Very Large Data Bases10.5555/645914.671648(493-500)Online publication date: 1-Sep-1987
https://dl.acm.org/doi/10.5555/645914.671648
Heiler SDayal UOrenstein JRadke-Sproull S(1987)An object-oriented approach to data management: why design databases need itProceedings of the 24th ACM/IEEE Design Automation Conference10.1145/37888.37939(335-340)Online publication date: 1-Oct-1987
https://dl.acm.org/doi/10.1145/37888.37939
Jullien CLeblond ALecourvoisier JThomas D(1986)A database interface for an integrated CAD systemProceedings of the 23rd ACM/IEEE Design Automation Conference10.5555/318013.318157(760-767)Online publication date: 2-Jul-1986
https://dl.acm.org/doi/10.5555/318013.318157

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