How to Get Started Drawing a Detailed Data Flow Diagram (DFD)
This KnowledgeKnugget is part of the online course “Data Flow Diagrams Simply Put!”. View the full course description and outline at Udemy https://bit.ly/Udemy-DFD. Prefer reading? Try the book version at https://bit.ly/BAX-DFD
DESCRIPTION (lectures 7 - 9)
Looking inside a complex process on a Data Flow Diagram can reveal hidden data and uncover potential problem areas. The first step toward ultimately exploding or levelling a process is to identify the internal processes that will become visible on a more detailed Data Flow Diagram. The problem is that a detailed DFD should never have more than 7 plus/minus 2 processes. How do you know which processes to represent? In lectures 7-9 you will learn how to identify the "RIGHT" Processes for a Data Flow Diagram (DFD).
Lectures 7-9 answer questions like:
• What does “exploding a process” mean?
• What is the business value of doing it?
• What processes will the lower level diagram contain?
ABOUT THE ECOURSE
This KK is part of an eCourse (VIEW FULL COURSE DESCRIPTION AND OUTLINE at http://businessanalysisexperts.com/pr.... 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?
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