Leinemann, KlausC. E. Vandoni2015-09-292015-09-2919801017-4656https://doi.org/10.2312/eg.19801015The CAD - system named GRIMBI is designed to support the functional modelling of large engineering systems. GRIMBI includes a data definition facility, to define model classes functionally and graphically. The data manipulation facility allows for structured modelling by stepwise refinement or abstraction according to known block diagram techniques. Besides batch modelling, GRIMBI supports interactive design by delegating graphic and communication tasks to an intelligent graphic terminal. GRIMBI checks the designer input for validity and completeness.10.2312/eg.19801015