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The Principles of Information Systems

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Lets say that you work at a High School. The High School currently lost their IT specialist and are in the process of hiring a new one. In the meantime, you were asked to join a discussion on improving the technology at the high school based on your background and education. You were unable to attend the meeting but offered to answer any questions they have via email. Here are the questions you were asked:

Why should we have a separate databases and a data warehouse?
Why don't we just have one large database for all our data, both current and historical?
What are the advantages of mobile wireless network over a wired network?
How would a mobile wireless network impact the educational process here?

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Solution Summary

The principles of information systems are provided. Separate databases and a data warehouse is analyzed. How a mobile wireless network impacts the educational processes are discussed.

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Why should we have a separate databases and a data warehouse?

Databases, those most people commonly use, are input only operations. They can be designed for simple queries, but are not set up to answer queries and searches as effectively. The data warehouse is not set up to do the updates to the databases quickly. Input or changes to a database are updated across the database quickly and that is the goal of using a database. The warehouse allows for housing the information. However, the warehoused data can be queried and analyzed quickly and efficiently. It is not limited to a single person either. As anyone who has used a system that requires inputs such as QuickBooks or an online sharing site, in many cases, if one person is using the program, no one else can access it. This makes it inefficient. If a teacher needs to access data about a student's past history of grades, and the principle needs to access data about disciplinary actions for students for a report, a database will have the information, but probably not the capacity for multiple uses at the ...

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