DEVRY BIS245 WEEK 1 AND WEEK 2 DISCUSSIONS

Databases and Gathering Requirements (graded)

1. Why are databases important to business? How do databases generate sales and-or profits? What databases do you interact with, and how do they benefit you?
2. What is meant by requirements gathering, and why is it important to clearly define the data requirements of a database before creating it?
3. Read the General Business Example on page 7 of the Frost section of the text. This page describes how to categorize data requirements from a form used by a company called Reading Fool. Turn to page 12 of the text, and pick one of the practice exercises: 1, 2, 3, 4, or 5. Present your solution here. List the category first, and then put all of the data items in parentheses after the category.

• Microsoft Access is one of the most popular database platforms on the market. However, there are many competitors. Why do you think that Access is so popular? What are some of the other types of databases available?
• Discuss the differences between Access and its competitors. Are there truly any differences or are they the same technology implemented in different ways?

1. Do you think that Access can serve as a corporate database solution, or is it strictly a personal database solution? What might be the difference between a personal and corporate database solution?
   

WEEK 2

What role does the entity-relationship (ER) diagram play in the design process? Discuss the different types of information represented in the ER diagram and the symbols used to represent them. Discuss the meaning of an entity as related to ER diagrams. How would you approach the diagramming process?

This section lists options that can be used to view responses.

When designing database tables, the difference between a good design and a bad design can be a few seconds in response time and several minutes. You may think that this is not a huge difference, but imagine waiting several minutes on a web page for your results to load. How long would you wait? A slow database can mean the loss of customers. So let’s begin by discussing some of the common elements of tables and how you would approach the table design. What would you do to ensure that your page loads in a few seconds? Discuss the relationship types and how they affect your design.

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