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design data flow digram (DFD). 2. An Online Public Access Catalog (OPAC) is an e-Library website which is part of Integrated Library System (ILS), also

design data flow digram (DFD).

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2. An Online Public Access Catalog (OPAC) is an e-Library website which is part of Integrated Library System (ILS), also known as a Library Management System (LMS), and managed by a library or group of libraries. Patrons of the library can search library catalog online to locate various resources books, periodicals, audio and visual materials, or other items under control of the library. Patrons may reserve or renew item, provide feedback, and manage their account

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