GEMS: A graphical experimental meta system
SLAC National Accelerator Lab., Menlo Park, CA (United States), James George, US Atomic Energy Commission (AEC), USDOE · 1971
The implementation of graphical languages and graphical systems has become too complex to permit economical experimentation with many new languages or systems. Further, many applications function only as an interactive stand alone system or as a slave system; some are further restricted to particular input or output devices. A model for graphical systems with a linguistic base is presented; the model provides symmetry between recognition and generation of pictures, although emphasizing generation.