To elaborate further from that, we drill down to a level 1 diagram with lower-level functions decomposed from the major functions of the system. It is usually beginning with a context diagram as level 0 of the DFD diagram, a simple representation of the whole system. It may be used as a communications tool between a systems analyst and any person who plays a part in the system that acts as the starting point for redesigning a system. The purpose of a DFD is to show the scope and boundaries of a system as a whole. It shows how information enters and leaves the system, what changes the information and where information is stored. It can be manual, automated, or a combination of both. A neat and clear DFD can depict a good amount of the system requirements graphically. A Data Flow Diagram (DFD) is a traditional way to visualize the information flows within a system. The system’s performance meets user’s requirements, hence providing the main benefit of concentrating all the library services and functions within the power of a mouse click and feeding of data into the system.A picture is worth a thousand words. In reference to this system’s objectives, a fully automated library book management system was developed using the aforementioned tools. They include: PHP scripting language, HTML5, JavaScript, JQuery library, Cascading Style Sheets, MySQL 5.3 database running on Wamp Server, Bootstrap, Microsoft Visio 2010, Microsoft Project 2007, Microsoft Office 2010, Adobe Dreamweaver CS6, and Adobe Photoshop CS4. A number of tools were used to implement this system. This system aimed at automating the processes of cataloging, book circulation, fine calculation, card processing, member details maintenance, and reports generation. The system was intended to address the current problems experienced in Narok county libraries, with an emphasis on Maasai Mara University library which has not fully automated its services. Library Book Management System is an online application that was developed and designed with the sole objective of automating library services.
Information systems have proved to be effective in implementing the business processes of most organizations and institutions across the globe. A majority of business solutions are automated to meet the changing needs of the end users. The advent of diverse information technology systems has revolutionized the way of doing things.
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