Ten Hagen, P.J.W.Schouten, H.J.2015-10-052015-10-0519871017-4656https://doi.org/10.2312/egtp.19871008A system that accepts and processes graphical output from parallel processes using a single workstation, and its use in a User Interface Management System called Dialogue Cells, is described. It allows for a programmer to easily, concisely and precisely describe pictures and operations on them in a highly interactive environment. Each parallel process can do output independently, but pictures can also be moved from one process to another. Each process has its own graphical output environment. The description and implementation of the system is based on GKS.10.2312/egtp.19871008