Think of this as a piece of work that responds to one business event. The
business event is: Person Wants To Be A Member of Our Organisation
The input dataflow is everything that comes from the person when that event
takes place. I suggest that you call the input flow something like
Membership Application Details
Then you do a data dictionary definition
Membership Application Details = Application Form + Medical Information
+ Direct Debit Forms + Legal Documents.........
What are the output flows in response to this event? I envisage something
Depending on whether the Membership Application Details conform with your
business rules for accepting a new member.
Hope this helps. Keep talking.
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