Describe basic database concepts.
Examine the relational database model.
Create a conceptual model.
Define relationships between entities.
Course Outcome:
IT163-1: Synthesize database concepts needed to effectively design a database.
Purpose
All databases start with data. Without the data there would be no need for a database. In this scenario, Fit @ Home provides home gym concierge services. Their services include equipment subscription packages and personal training video sessions in the convenience and safety of home.
The data provided to you (IT163_Data1) represents the current data they are storing outside of a database. As you can see, it’s a very archaic and disorganized system for maintaining their data and it is becoming unwieldy. They need your help to organize their data so that they can manage it more effectively to grow their business.
Assignment Instructions
For this assignment, you will be using the diagraming application Microsoft Visio®, obtained through Microsoft Azure®. See the Azure link under Course Resources for details.
- Your initial task is to review the data provided and determine the entities and relationships that would exist for your relational database design. You’ll document them in upcoming steps.
Refer to IT163_Example1to see a demonstration of how to work through this process.
Things to consider as you analyze the data:
What groupings of information exist?
What data depends on other data?
How do these groupings relate to one another?
Look for one-to-one, one-to-many and many-to-many relationships in the data
An entity relationship diagram at a conceptual level will only show the names for each entity and the relationships between them. There will be no actual data depicted in the model you are building.
Reference: Relational Database Design and Implementation (4th ed.).
Chapter 4: “Entities and Relationships”
Sample Solution