You are required to develop an architecture for a system that helps customers in a department store. The store is part of a chain. It does this via specialized store-owned cell phones used only within the store. The system has the following characteristics.
The following is a key use case.
Physical Data Flow Diagram
In selecting your architecture, demonstrate your understanding: explain what alternative architectures you have considered and why other alternatives are inferior to your choice. Explicitly specify criteria that you use to compare alternatives. Keep in mind that in real life, the choice of architecture affects maintenance for years.
Networking Data Flow Diagram
An example of a networking data flow diagram can be found below.
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