Business analysis - Document
Data flow diagram
(DFD)
A diagram showing how data moves between people, processes, systems and data stores
What's it for?
Shows where information comes from, where it goes and what happens to it along the way.
For example…
A data flow diagram shows a customer entering an address, the website sending it to CRM and CRM passing it to the delivery system.
During a privacy review, a DFD reveals that employee details leave HR and are copied into payroll, identity and benefits systems