draw a DFD that includes some obvious mistakes to see whether your newly hired junior analysts can find them.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

CPT 264 ASSIGNMENT 4: Data and Process Modelling Case Study

This is a two-part individual assignment based on Chapter 5.

You are the IT director at a university. As part of a training program, you decide to draw a DFD that includes some obvious mistakes to see whether your newly hired junior analysts can find them. You came up with the diagram 0 DFD shown below.

Part 1 (Worth 45 points)

Based on the rules explained in this chapter, state the problems the analysts should find. Download this document and type in your answers in the DFD Problems section below. 

Part 2 (Worth 55 points)

Draw a corrected DFD in designated section below. Creating Processes, with appropriate names, as needed.

Save and submit this file with your answers the designated Assignments folder in D2L.

What are the mistakes in this diagram 0 DFD?

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Part 1: DFD Problems

 

1.	There is no input for assign advisor
2.	There is no output for check open classes
3.	Calculate grade is using the Student ID number as input it cannot produce output.
4.	Student and Instructor are bot external entities. They can not be connected in the data flow
5.	The seating chart does not have an outgoing data flow
6.	Class Roster and Seating Chart are data sores  that cannot be connected by a data flow.

 

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