国际标准书号展开算法

在回溯编目过程中, 许多图书馆会遇到相同的问题: 是逐条将卡片款目输入新系统, 还是直接借助旧系统中ISBN 检索点从商品书目数据库中读取有关数据。如果是批处理读出, 则高速、低耗、高质量, 但前提是原数据库与目标数据库的ISBN 号应一致, 可是有的旧流通系统中ISBN 为10 位, 商品书目数据为13 位。因此, 本文介绍一种ISBN 展开算法, 探讨如何解决这一问题。

RECOVERY CALCULATION METHOD OF ISBN

During the retrospective cataloguing process many libraries may face the same problem;to input the items of card catalog one by one into the new sys tem of directly read the concerning items from the commercial bibliography datab ase through the retrieving point ISBN of the old circulation system in operation .If reading in the mode of batch processing,then the retrospective cataloguing i s of high speed,low cost and high quality,But the prerequisite is that the ISBN of the source and target databases have the same digits. But the ISBN of some old circulat ion system in use has a length of 10- character, the commerical bibliography database 13- character. Thus, this paper introduces the recovery calculation method to tackle this problem.