抄録
GEMS-IIT, a handy version of computer-aided registration-retrieval system for mineral specimens, has been released as a subsystem of GEMS-II, an electro-data processing system for geological specimens and installed into the central computer system of Tsukuba Science Center, MITI. Database management system of GEMS-IIT is prin-cipally supported by dBASEIIIPLUS because of its refined operation utilities and reasonable cost performance. The subsystem, consequently, is easy to adopt for desktop personal terminals either with on-line or off-line mode. Throughout the process of system analysis, special attention has been paid on the unique data characteristics of geological specimens, such as “fuzzy” definitions for keywords, heterogeneous data structure, selection of attributes for search, relation to the storage method, and so on.
