HELP Decision Support on the Macintosh
Michael J. Hukill, Kent M. Ward, Peter J. Haug, Homer R. Warner · PubMed Central · 1987
The paper describes an implementation of the HELP decision-support system for the Macintosh personal computer. Following a brief background description of HELP as it is implemented on a Mainframe (TANDEM) computer, the principle features of the Macintosh version will be described. These include: the data-driven feature (an observation or decision may evoke another hypothesis or frame to be executed), the nesting feature by which a knowledge frame calls another frame whose output is needed to complete execution of the first), the ASK driver (the method by which the expert can direct the data requests when he creates a frame), the Query driver (a method by which the “program” determines the set of data items to be asked), inheritance of properties among items in the data hierarchy, and Decision-driven Data Acquisition (DDA)(1).