Hillebrand, K.Weiss, J.C. E. Vandoni2015-09-292015-09-2919801017-4656https://doi.org/10.2312/eg.19801002The German DIN-Proposal for Graphic Systems provides five classes of input types and three different methods of reading them. In this paper considerations are made on providing a much more powerful interface for the application program than specified in the standard. The basic idea is a user-definable syntax which can be dedicated to every application program under automatic run-time control. One important point is the obviously increased user aid. Last but not least the different implementation methods (central and decentral) are discussed under these aspects.10.2312/eg.19801002