WWW上のOPACにおける既知事項検索の諸問題

上田修一; Shuichi Ueda; 吉野貴庸; Takanobu Yoshino; 石田栄美; Emi Ishida; 倉田敬子; Keiko Kurata

doi:10.46895/lis.41.1

WWW上のOPACにおける既知事項検索の諸問題Problems with title and author searching in WWW OPAC

上田修一¹，吉野貴庸²，石田栄美²，倉田敬子¹Shuichi Ueda¹, Takanobu Yoshino², Emi Ishida², Keiko Kurata¹

¹ 慶應義塾大学文学部図書館・情報学専攻School of Library and Information Science, Keio University ◇ 〒108-8345 東京都港区三田二丁目15番45号 ◇ Mita 2-15-45, Minato-ku, Tokyo 108-8345, Japan

² 慶應義塾大学大学院文学研究科図書館・情報学専攻Graduate School of Library and Information Science, Keio University ◇ 〒108-8345 東京都港区三田二丁目15番45号 ◇ Mita 2-15-45, Minato-ku, Tokyo 108-8345, Japan

受付日：2000年5月10日Received: May 10, 2000

受理日：2000年8月30日Accepted: August 30, 2000

発行日：2000年11月25日Published: November 25, 2000

WWW OPAC has become one of standard services at university libraries in Japan. A large number of studies have been carried out for the evaluation of OPACs. What seem to be lacking, however, are those from the actual users’ point of view. In this research, we examine major 15 WWW OPAC systems from such search terms as supposed likely to be used by novice users. Three cases are analyzed, each searching a specific book or author from terms extracted from it and their variants. The first case is to search a Japanese book translated from English from 9 terms (ex. full Japanese title, one keyword from title, ‘kanji’ of Japanese translator, English spell of author, and so on). The second case is to search a book with long title from 5 terms (full title including subtitle, main title only, and the variants). The third case is to search all books by an author, whose ‘yomi’ is the same with more than 9 persons.

The major results are as follows: (1) Only three systems are successful in searching from all the terms in the first case. (2) Some systems are very ineffective, can be searched only from few terms. (3) The same outcomes cannot be got even from the same search terms.

These problems seem to occur under such situations as: (1) A standard architecture and indexing system of OPAC database have not yet been established. (2) Standard OPAC searching procedure has not been developed. (3) Current OPAC is a mixture of traditional cataloguing rules and online retrieval system.

It is necessary to develop an original architecture and standard searching procedure for OPAC based on a new user model.