DMG—object-oriented iterative knowledge acquisition for the generation of diagnostic hypertext systems

DMG is a development environment for building diagnostics applications of electrical equipment. Knowledge contained in an equipment model is compiled into a decision-tree like diagnostic logic, which is then used visually to pinpoint deficiencies in the performance of the equipment. The delivery application is a hypertext document which combines the diagnostic logic with links to sources of additional information. Benefits and experiences in real industrial use of DMG are presented; and practical issues on using a CLOS-based graphical user interface library are discussed.