Week 3 textbook assignment - Week 3 Chapter 2 Review...

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Week 3 Chapter 2 Review Questions 1, 3, 15, 16 1. Because the data an organization uses is the raw information put into a system, it is viewed very differently by different people throughout the organization. This data is often interpreted from task centric point of view, rather than a comprehensive interpretation as it pertains to the organization. Data modeling is important because it helps the designer, the programmer and the end user to interact. It improves the level of understanding of all parties about the organization for which the database is designed. Essentially, it is a communications tool to help the designers, programmers and end users to see how all the different pieces of the organization fit together. When a good data model is available it doesn’t matter that there are different points of view because all involved have a comprehensive understanding of the data’s usage throughout the organization. However, when a good data model is not available it can be very problematic for everyone. 3.
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This note was uploaded on 08/02/2009 for the course IST 210 taught by Professor Mcconn,charlotteryoo,jungwoo during the Summer '08 term at Pennsylvania State University, University Park.

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Week 3 textbook assignment - Week 3 Chapter 2 Review...

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