Abstract
In 1990 the author proposed ac onceptual framework, which purpose was to grasp a bibliographic item through as tructured view and, as a result, to cope with some critical problems appeared in descriptive cataloging. That framework was named “3-layered model” on account of its structure shown in that time. Several questions about and critical comments on the proposed model have been presented since the model was made public.
This paper attempts to arrange properly the points at issue included in those questions and comments, particularly expressed by Yasuo Iwashita and Tsutomu Shihota, and then to examine the content of each point. Consequently, it is proved that some of those critical comments are valid and valuable, but others are not. So this paper makes objections to such invalid criticism, in particular with regard to the issues related to the concept of “work”.
