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Software Fortresses: Modeling Enterprise Architectures by Janet Van Sickler, Roger Sessions

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10.2. Web Service Fortresses

A Web service fortress shares many characteristics with a presentation fortress. Both act as security buffers protecting your enterprise. Both act as gateways to the outside world. Both receive their requests over the Internet.

There is one major difference between the two fortress types: A presentation fortress receives its requests from browsers. A Web service fortress, on the other hand, receives its requests from programs.

Because the presentation fortress is receiving its requests from a browser, you can start with the assumption (security concerns aside, for the moment) that it is your code making the request. It is not your code running inside your presentation fortress, but it is your code nevertheless. In ...

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