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10IPT: Communications Case Studies

posted Feb 8, 2012, 12:38 PM by Eddie Woo
Today we'll have a look at some concrete examples of case studies that will help you understand the concepts we introduced yesterday.
  1. Quickflix
    • Outline the way that Quickflix works.
    • Using Quickflix as an illustration, explain the need for varying levels in communications systems.

  2. EFTPOS
    • For a typical EFTPOS transaction, identify: (a) the sources and destinations of data, (b) the transmitter and (c) the medium.
    • Take the series of processes and work together to place them into correct order.
    • For each process, identify which of the seven processes that is taking place (watch out - sometimes there are several occurring simultaneously).
    • Draw a data flow diagram that summarises the transaction.
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