Northern Virginia Community College Normalization Discussion

Northern Virginia Community College Normalization Discussion

1. To keep track of students and their advisors, a university uses the table structure shown below. Assuming that the sample data are representative, draw a dependency diagram in Powerpoint that shows all functional dependencies including both partial and transitive dependencies. (Hint: Look at the sample values to determine the nature of the relationships.)

Attribute Name	Sample Value	Sample Value	Sample Value	Sample Value
STUDENT_ID	123456	478596	123456	389987
STUDENT_NAME	Kim Brutt	Mary King	Kim Brutt	Donald Nouglle
ADVISOR_ID	123	473	567	123
ADVISOR_NAME	John Smith	Kim Young	Julia Roberts	John Smith
DEPARTMENT_CODE	AIT	CS	ECE	AIT
DEPARTMENT_NAME	Applied Information Technology	Computer Science	Electrical Engineering	Applied Information Technology
APPOINTMENT_DATE	01/01/2009	05/03/2009	03/06/2009	01/01/2009

2. Using the initial dependency diagram drawn in question 1, remove all partial dependencies, draw the new dependency diagrams in Powerpoint, and identify the normal forms for each table structure you created.

3. Using the table structures you created in question 2, remove all transitive dependencies, and draw the new dependency diagrams in Powerpoint. Also identify the normal forms for each table structure you created. If necessary, add or modify attributes to create appropriate determinants or to adhere to the naming conventions.

4. Using the results of question 3, draw the fully labeled Crow’s Foot ERD in Powerpoint. The diagram must include all entities, attributes, and relationships. Primary keys and foreign keys must be clearly identified on the diagram.

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