Examples of Data Flow Diagrams (DFD) in Business Processes
DFD Examples
DFD Notation
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Data Flow : labeled arrow
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Process
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Available data (data store)
Example: Air line reservation
DFD Example 1: Payroll
DFD Example 2: Old Car Mart
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Buys and sells old cars; has large number in
stock: different models, make, year,colors,…
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Does some repairs for adding value; records
kept; has own garage
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Advertise in news papers
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Salesmen hired on commission basis to handle
customers, negotiate, etc.
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Needs to take stocks; prepare summary of
sales, profits, etc; pay salesmen
Prepare DFD
Example 3: Book Supplier
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Supplies books to customers; no stocks
maintained; books sourced directly from
publishers
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Prepare context diagrams
Book Supplier: Exploding Process
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Explore various examples of Data Flow Diagrams (DFD) showcasing the flow of information in different business processes such as air line reservation, payroll systems, old car mart operations, and book supplier workflows. These visual representations illustrate the sources, processing, and sinks of data in a structured manner, aiding in understanding complex business operations.
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Presentation Transcript
DFD Notation Data Flow : labeled arrow Sources and sinks of information/data (also called external entity) or Process or Available data (data store) or
DFD Example 2: Old Car Mart Buys and sells old cars; has large number in stock: different models, make, year,colors, Does some repairs for adding value; records kept; has own garage Advertise in news papers Salesmen hired on commission basis to handle customers, negotiate, etc. Needs to take stocks; prepare summary of sales, profits, etc; pay salesmen Prepare DFD
Example 3: Book Supplier Supplies books to customers; no stocks maintained; books sourced directly from publishers Prepare context diagrams
