Evaluate and prepare various types of data flow diagrams

Evaluate and prepare various types of data flow diagrams, and analyze the implications of computer technology on the internal control structure and auditing procedures.

Evaluate and prepare various types of data flow diagrams

Firstly, evaluate and prepare various types of data flow diagrams, and analyze the implications of computer technology on the internal control structure and auditing procedures.

Assignment Description
Accountants can use data flow diagrams (DFDs) to depict the physical flows of data through an AIS (like document flowcharts), or the logical flow of data through an AIS (like system flowcharts). Like document or system flowcharts, their main objective is to document data flows in an orderly, graphic, and easilyunderstood format. But DFDs use fewer symbols than either document or system flowcharts, and do not require columns (like document flowcharts).

Discuss how a document flowchart assists each of the following individuals:
Firstly, A systems analyst.
Secondly, A systems designer.
Thirdly, A computer programmer.
Fourthly, An auditor.
Further, A data security expert.

Flowcharting is both an art and a science. Guidelines can be use to make better flowcharts. Further, what are these guidelines for document, system, and data flow diagram flowcharts?
What are the four symbols used in data flow diagrams? What does each mean?
Discuss why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?

 

Grading Criteria

Analyzed the givens situation in the IP. 50%
Additional research supporting the initial answer to the IP. 30%
Justified ideas and responses by using appropriate examples and references from texts, Web sites, and other references or personal experience. 20%
For assistance with your assignment, please use your text, Web resources, and all course materials.

More details;

How many types of data flow diagrams are there?
Three

Although all these are composed of the same types of symbols, and the validation rules are the same for all DFDs, there are three main types of data-flow diagram: Context diagrams — context diagram DFDs are diagrams that present an overview of the system and its interaction with the rest of the “world”.

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