Describes a project that demonstrates subject searching in an experimental online catalog based on academic library databases that were enhanced with search trees; compares the retrieval effectiveness of search trees with random subject searching approaches; evaluates system and retrieval effectiveness; and discusses proposed research. (Contains…

Describes the comparative approach to system evaluation used in a project which administered an online retrieval test to an experimental online catalog to produce data for evaluating effectiveness of a new subject access design. Discusses efforts used to ensure data reliability, and strategies the researchers can use to improve on the data…

Discussion of academic library online catalog users' queries highlights a new approach to displaying retrieved subject headings in subject searching, the exact-display approach, that was designed to encourage users to browse bibliographic information. Demonstrates an implementation of the exact-display approach in an experimental online catalog.…

This article studies the performance of online catalog user queries involving personal names and recommends system improvements based on the results. It examines various personal name queries, the construction of bibliographic data, and subject headings. Testing done on an experimental online catalog found search tree designs to reduce system…

Over the last decade, studies of online catalogs have revealed that they frequently discourage users. Subject queries often fail to produce retrievals or produce retrieval sets that are too large and unwieldy to be easily scanned. Research shows that users are seeking alternative approaches to those that manipulate the subject headings in catalog…