Book.: Object-oriented Systems Analysis and Design;

        2004 International Edition

Author.: Joey F. George

         Dinesh Batra

         Joseph S. Valacich

         Jeffrey A. Hoffer

Reference No.: 78655

Quote:       

“Information systems analysis and design is a simple method used by companies ranging from IBM to Pepsi to Amazon.com to create and maintain information systems that perform basic business functions such as keeping track of customer names and addresses, processing orders, and paying employees. The main goal of systems analysis and design is to improve organizational system, typically by applying software that can help employees accomplish key business tasks more easily, efficiently and effectively. A systems analyst is at center of developing this software. The analysis and design of information systems are based on the following: (a) an understanding of the organization’s objectives, structure, and processes; (b) knowledge of how to exploit infomration technology for advantage.”

Chapter 1: Foundations of Object-Oriented Systems Development

Review:   

Using model-driven analysis, the key to approach that computer systems analysts is often used. Using graphics, such as flowcharts, and  hierarchy charts is an example of modeling.

For example in data-driven development proponents claim that to concentrate on modelling detailed activities or processes is bound to create an unstable system. Being more constant, will bring consistency and therefore would create a better working and stable system. It has brought importance on the entities, their attributes and their relationship with each other. Data-driven is just like storing data: storing is most important, and changing it most of the time would ruin it.

Information is now an important aspect for the management to make it easy for them to use essential processes. Before, information is just used to create forms, paperwork and word processing, now it boosts the accuracy and speed of business’ systems. For example is the cash register. The process of getting a lot of information from the product to be bought takes a lot of time. By the use of the system software for this business sector, the manual-based information system can easily be obtained by the use of the barcode.

Finally, decision makers now understand that information is not just a byproduct of conducting business; rather, it fuels business and can be the critical factor in determining the success or failure of a business