Scope Limitations

As it is to serve as an example rather than a commercial application, some areas have been ignored. However, these are essentially refinements, and do not affect the system architecture:

  • No security will be implemented for credit card purchasing. (HTTPs would be used in a real application, but the details of setting this up vary between J2EE servers).

  • A real system would connect to an external payment processing system to process credit card payments. In the sample application, this is replaced by a dummy component that blocks for a varying period of time and randomly decides whether to approve or reject transactions.

  • No allowance will be made for special seating requirements such as wheelchair access, although this is an important consideration in most ticketing systems.



Expert One-on-One J2EE Design and Development
Microsoft Office PowerPoint 2007 On Demand
ISBN: B0085SG5O4
EAN: 2147483647
Year: 2005
Pages: 183

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