Reference no: EM13660823

Task 1

Draw a context diagram data flow diagram for the system described above.

Task 2

Draw the Level 0 DFD (Data Flow Diagram). All processes on this diagram should be functional primitives.

Task 3

Draw an ERD (Entity Relationship Diagram) which represents the entities described in the case study, fully normalised to reflect all entities, relationships, cardinality and optionality. Ensure to follow the crow's feet notation to indicate cardinality.

Task 4

Create a 3NF design for the system described in the case study. Provide the entity attribute list in 3rd normal form to support the ERD in Task 3. Make sure that all primary and foreign keys are identified properly. It is not necessary to provide the earlier normalisation forms (1NF and 2NF) as these will not be marked

Task 5

Draw a class diagram for the system described in the case study. The format should be similar to the class diagram in figure 6-30 of your textbook. Make sure to include all relevant attributes and methods for each class.

Task 6

The Manager of Dazzling Costumes is most interested in your work. She has no knowledge of Systems Analysis and Design and has asked for a brief explanation of what you have done and what these mean to her. Write ½ - 1 page report explaining your work in Tasks 1 - 5.

Task 7

Briefly describe various system changeover methods. Suggest a changeover method for the system described in the case study and provide specific reasons to support your choice.