Discussion of search strategy in information retrieval by end users focuses on the role played by strategic reasoning and design principles for user interfaces. Highlights include strategic help based on collaborative coaching; a conceptual model for strategic help; and a prototype knowledge-based system named FIRE. (Author/LRW)

An interactive multimedia tutorial system that focuses on the "why" aspect of user interface design is described. The system contains a design exercise, three experts for guidance, and a user group that comments on the usability of the design. Testing results indicate that learners consider more possible solutions to design issues. (Author/AEF)

Describes Aran, a knowledge-based system designed to help users deal with problems related to Unix operation. Highlights include adaptation to the individual user; user modeling knowledge; stereotypes; content of the individual user model; instantiation, acquisition, and maintenance of the individual model; dynamic acquisition of objective and…