Create a Context-Level DFD to Visualize Project Scope


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DESCRIPTION (lecture 6)

Jump-Starting Context Diagrams, Data Flow Diagrams, Workflows, and Process Models by Visualizing Material and Data Movement within an Organization

Converting a Rigorous Physical Process Model (RPPM) to a Context-Level Data Flow Diagram (DFD) is a simple but critical step in the early project discussion. An RPPM is a great first-cut diagram that focuses on organizational units and the exchange of material or data. Looking inside an organizational unit to see how they do what they do requires a more detailed perspective. The Context-Level Data Flow Diagram is a phenomenal picture of the scope of a project and sets the stage for drilling down individual processes to get the right requirements for your project.

Lecture 6 answers questions like:
1. What is the difference between a Rigorous Physical Process Model and a Context-Level DFD?
2. How can I convert the RPPM to a legitimate DFD?
3. Why is this conversion necessary?

ABOUT THE ECOURSE

This KK is part of an eCourse (VIEW FULL COURSE DESCRIPTION AND OUTLINE at http://businessanalysisexperts.com/product/ecourse-data-flow-diagrams-context-model/). In this course you will learn the answers to these questions:
• What is a Data Flow Diagram (DFD) and what does it do for you?
• What is the difference between a Rigorous Physical Process Model and a Context-Level DFD?
• What symbols can you use on each type of diagram?
• What is the business value of exploding or levelling a DFD?
• What is a simple approach for drilling down into a process?
• How can you show the internal processes and flows that produce the results?
• What does balancing a Data Flow Diagram mean and what is the business value?
• What is the most efficient approach to balancing a DFD?
• What business value do detailed process specifications offer?
• How can you express detailed specifications for processes and data?
• What is “metadata” and why do you need it?
• What does a fully balanced DFD look like?
• What value does a DFD fragment provide?

To view more IT requirements training, visit the Business Analysis Learning Store at http://businessanalysisexperts.com/business-analysis-training-store/.

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