This assessment item is designed to test your understanding

Question

Assessment item 3NormalisationValue:15%Due date:11-Sep-2015Return date:02-Oct-2015Submission method optionsAlternative submission method

Task

Table 1: GRADE REPORT relation

Student_ID	Student_Name	Campus_Address	Major	Course_ID	Course_title	Instructor_Name	Instructor_Location	Grade
16830058	Williams	Albury	BIT	ITC114	Database Sys	Peter	B104	HD
16830058	Williams	Albury	BIT	ITC211	Sys Analysis	John	B115	D
543291073	Baker	Wagga	Acct	ITC200	Database Mgt	David	H310	D
543291073	Baker	Wagga	Acct	Acc11	Fund Acct	William	A120	C
543291073	Baker	Wagga	Acct	Mkg21	Intro Mkt	Mike	A112	P

Using Table 1: GRADE REPORT relation above

1. Draw a dependency diagram to show the functional dependencies in the relation 

2. Decompose GRADE REPORT into a set of 3NF relations

3. Draw a relational schema for your 3NF relations and show the referential integrity constraints

NOTE

Manually drawing the dependency diagram or the relational schema is NOT acceptable.

Rationale

1. This assessment item is designed to test your understanding of more advanced database design, your ability to use an iterative approach to modelling, and to examine data problems due to redundancy.

2. Specifically you are required to apply the normalisation process to existing data in order to minimise redundancies and data anomalies.

Marking criteria

The marking criteria for this assignment are shown below:

Task	HD	DI	CR	PS
Draw a dependency diagram to show the functional dependencies in the relation	The dependency diagram accurately identifies and correctly shows all PKs and all functional, partial, and transitive dependencies	The dependency diagram accurately identifies and correctly shows all PKs and most functional, partial, and transitive dependencies	The dependency diagram identifies and shows most PKs and some functional, partial, and transitive dependencies	The dependency diagram identifies and shows few PKs and few functional, partial, and transitive dependencies
Decompose GRADE REPORT into a set of 3NF relations	The set of 3NF relations accurately identifies and correctly shows all PKs and all the relevant attributes	The set of 3NF relations accurately identifies and correctly shows all PKs and most of the relevant attributes	The set of 3NF relations identifies and shows most PKs and some of the relevant attributes	The set of 3NF relations identifies and shows few PKs and few of the relevant attributes
Draw a relational schema for your 3NF relations and show the referential integrity constraints	The relational schema accurately identifies and correctly shows all of the referential integrity constraints	The relational schema accurately identifies and correctly shows most of the referential integrity constraints	The relational schema identifies and shows some of the referential integrity constraints	The relational schema identifies and shows few of the referential integrity constraints