Task
Normalisation

Using the given table/relation, do the following:
Draw a dependency diagram to show the functional dependencies in the relation
Decompose the following table into a set of 3NF relations
Draw a relational schema for your 3NF relations and show the referential integrity constraints
Manually drawing the dependency diagrams is not acceptable.
Trainer_ID Trainer_Name Room_No Room_Seats Class_Session Class_Name Class_Day School
101 Alana Fredrick
54A
36
9:00
ITC114
Mon
Computing
102 George Edwards
22
28
9:00
ITC333
Mon
Computing
103 Lilly Nelly
59
38
12:30
BUS350
Tues
Business
104 Eddy Brown
53
30
12:30
ITC114
Thurs
Computing
102 George Edwards
59
38
4:00
ITC504
Fri
Computing
103 Lilly Nelly
18
24
12:30
BUS360
Wedn
Business
102 George Edwards
53
30
9:00
ITC201
Wedn
Computing
105 Sam Wang
22
28
4:00
ITC556
Tues
Computing
106 Yifeng Chong
58
38
9:00
ITC556
Thurs
Computing
Rationale
This assessment item is designed to test your understanding of the normalisation process based on existing data in order to minimise redundancies and data anomalies.
Marking criteria
The marking criteria for this assignment are:
Task HD DI CR PS FL
Decompose relation into 3NF and show relational schema for each relation and referential integrity constraints All relations in 3NF and all partial and transitive dependencies removed, each relation shows correct referential integrity constraints All relations in 3NF and all partial and transitive dependencies removed, each relation shows referential integrity constraints All relations in 3NF and all partial and transitive dependencies removed, most relations show referential integrity constraints All relations in 3NF and all partial and transitive dependencies removed, some relations show referential integrity constraints Incomplete decomposition or relations not in 3NF, no relations show integrity constraints
Create an ERD & show all entities, PK & KF attributes,
relationships, cardinality & optionality Comprehensive and accurate ERD that contains all entities, PK and FK attributes, associative entities included if required, all relationships shown and identified with correct cardinality and optionality Detailed and accurate ERD that contains all entities, PK and FK attributes, associative entities included if required, all relationships shown and identified with correct cardinality Thorough & reasonably accurate ERD that contains all entities, PK and FK attributes, associative entities included if required, all relationships shown with correct cardinality Adequate ERD that contains most entities, PK and FK attributes, associative entities included if required, all relationships shown with cardinality Incomplete or irrelevant ERD that contains some entities, relationships, and cardinality