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Abstract

Library information searching lacks a descriptive theory which explains how a user decides to borrow one book and not another. Such theory should act as a reference framework against which cataloguing rules and the classification system can be measured, and should be based on 2 complementary perspectives, described in detail: modern classification theory, which explains what cataloguing and classification involve, and philosophy of science, which explains what happens when the user meets the catalogue record. Catalogue information must answer which work is described, and why this work on the subject is chosen. A descriptive theory is especially necessary for knowing what new information to add to the catalogue. Discusses this in a subsequent article