Draw DFD (Data Flow Diagram) to 2nd level for Online Examination System – IGNOU MCA Assignment 2014-15

By | July 23, 2014

 MASTER OF COMPUTER APPLICATIONS
Course Code : MCS-014
Course Title : Systems Analysis and Design
Assignment Number : MCA(1)/014/Assign/13
Assignment 2013

 

Data Flow Diagrams

A DFD can be categorized in the following forms:

Context diagram: An overview of an organizational system that shows the system boundaries, external entities that interact with the system and the major information flows between the entities and the system. In this diagram, a single process represents the whole system.

First level DFD: A data flow diagram that represents a system’s major processes, data flows, and data stores at a high level of detail.

Draw the DFDs upto 2nd level for Online Examination System.

Figure:- Level 0

DFD_Online_Examination_L0

 Figure:- Level 1

 

DFD_Online_Examination_L1

 Figure:- Level 2

 

DFD_Online_Examination_L2

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