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Draw a DFD that includes some obvious mistakes

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 DFD shown on the attached

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

You are the IT director at Big Ten 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 DFD shown on the attached. How many problems should the analysts find?

More Details:

Businesses use data flow diagrams every day to analyze existing systems to see where roadblocks exist and to create new business processes.

A data flow diagram (DFD) illustrates the flow and transformation of data for a particular business process.

It’s a visual representation of how data flows through a system, so you can clearly see where the data comes from, where it goes, and how it gets stored. Learn how you can make a DFD with Lucidchart in just 10 steps.

Elements of a data flow diagram

To get started, you’ll need to create a context diagram (also called Level 0), which represents the entire system.

Think of this as the bird’s eye view that just about anyone—engineers, clients, and executives—can look at to understand how a process works.

Once you’ve created a DFD, you can add levels that include more information about a process.

You can continue to add additional layers to the DFD, but you’ll want to keep these to a minimum.

To learn more about data flow diagrams, check out our guide here.

There are standard data flow diagram symbols used to represent different parts of the system.

For example, you’ll use one shape to represent an external entity and another symbol for a process.

To learn more about data flow diagram symbols, check out our guide here. Here are the symbols you’ll need to use to create a DFD:

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