Title :
A CODASYL CAD Data Base System
Author_Institution :
SIEMENS AG Central Division of Technology, Munchen, Germany
Abstract :
If in CAD systems a CODASYL data base system is used, one has to avoid some well known disadvantages. To achieve this, we defined for CAD needs in application programs a special high level data manipulation language (HLDML). With this concept the application programs get independent from the data base structure and they are able to work with a "many records at a time"-view. Other provisions reduced some overhead caused by the used data base system.
Keywords :
CADCAM; Circuit testing; Computer aided manufacturing; Data structures; Design automation; Integrated circuit layout; Large scale integration; Permission; Printed circuits; System recovery;
Conference_Titel :
Design Automation, 1981. 18th Conference on
DOI :
10.1109/DAC.1981.1585414
