In a discussion with a colleague the following statement is made to you: ¨I was explaining data flow diagrams to our client this morning. It took a while but eventually they got the idea that all internal entities must be within the organization. Similarly, all external entities must be outside the organization. How much more simple can it be?
Required:
a)Evaluate the extent to which your colleague is correct.
b)Justify whether your colleague is right or wrong, using references to the definition of internal and external entities, and use an example to illustrate your position.

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