Library Information Processing System: ODS Data Model


Affiliations

  • Indian Institute of Technology, Central Library, Kharagpur, 721 302, India
  • Guru Ghasidas University, Dept. of Library and Information Sc., Bilaspur, CG, India

Abstract

A library system contains books, authors and users and many types of other material. For books, the location is identified by a Class Number, for author by an author's name and for users by a users' name. Author and book is a one-to-many relationship whereas library and book is a many-to-many relationship. A library can hold many copies of a book, and a book can appear in many libraries. A book and a library enter into a relationship grouping by sharing a copy. This relationship instance has a cost attribute, which states how much the library paid for the book. Patron-library and user- to- book are many-to-many relationships. When a user borrows a book, the transaction creates an instance of the patron and book relationship and attaches a due date attribute to it.

The intention of this article is to highlight the findings during our study on LIPS (Library Information Processing System) regarding the advancement of a conceptual framework for considering a fully integrated library automation system. Although due to the space we would limit the discussion to E-R model and Object Originated model, it is not asserted that what follows constitutes a complete framework, but rather an attempt to take a step towards the development of a framework. The motivation is both intellectual and pragmatic. At an intellectual level, there is curiosity about the nature of things and about how and why they work. At a pragmatic level, there is the incentive that a clearer theoretical understanding might bring about greater effectiveness in practice.


Keywords

Object Data Model, Encapsulation, Inheritance, Data Dictionary, Conceptual Model, Database Administrator, Library Automation, Integrated Library Information System.

Subject Discipline

Library Management

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