Adapting a Consultation System to Critique User Plans

Article Abstract:

Users of expert systems, especially when they are experts themselves, often become annoyed with the system. Users of ONCOCIN, a cancer therapy expert system, often experienced this annoyance. The system was adapted to accept, analyze and critique a user's therapy plan. Only significant differences between the user's plan and the system's plan are critiqued. ONCOCIN is described as it was and how it was adapted for critiquing plans. Implementation of the system is discussed.

Artificial intelligence, Expert systems, Cancer, Health care information services, End User, Medical Advice Systems, User Relations, Rule-Based System

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The Depth-Breath Trade-Off in the Design of Menu-Driven User Interfaces

Article Abstract:

Based on the concept of human limits for handling data, namely, the seven plus or minus two numbers, it is suggested that optimal menu interfaces can be designed. With the ubiquity of menu-driven software as an accepted reason for their study and continuation it is concluded that the generalizations listed should be tempered with good judgement when being applied in system design. Examples of tree structures are shown in the Appendix.

Menus, Design, User Need, User Interface, User interfaces (Computers), Tree Structures

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