How does an analyst determine whether a person or organization should be represented on a DFD as an external agent or by one or more processes?
How does an analyst determine whether a person or organization should be represented on a DFD as an external agent or by one or more processes?
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Related Book For 
Systems analysis and design in a changing world
5th edition
Authors: John W. Satzinger, Robert B. Jackson, Stephen D. Burd
ISBN: 978-1423902287