de Bruin, HansBouwman, Petervan den Bos, Jan2014-10-212014-10-2119931467-8659https://doi.org/10.1111/1467-8659.1230013DIGIS (Direct Interactive Generation of Interactive Systems) is a graphical UI design environment for non-programmers that facilitates the design of all aspects of a UI with direct manipulation techniques. DIGIS is based on four models: an object model, a system task model, an interaction model and a dialogue control model. These four models describe an interactive system at a high conceptual level which allows a UI designer to quickly construct a high quality direct manipulation UI that supports undo-redo, context-sensitive help and guidance, and connect the UI with the (existing) application.10.1111/1467-8659.123001313-24