Offers a case history of the development of the Silicon Graphics "IRIS InSight" system, a system for viewing on-line documentation using Standard Generalized Markup Language. Notes that SGML's explicit encoding of structure and separation of structure and presentation make possible structure-based search, alternative structural views of…

The first of three articles reports the effectiveness of a feature-matching approach to computer retrieval of graphic information. The second discusses the use of multivariate techniques to measure perceived complexity of database searching by users. The third explores the limitations of user consultation in database design. (Author/CLB)

This article reports results of a case study of text-based online and CD-ROM databases that identified design characteristics that are important to high school students' use for higher-level learning as well as for information access and retrieval. Implications for the design of databases are suggested. (Contains 62 references.) (LRW)