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SCEA Sun's book Part2 example - WebServices VS. Web App in MVC pattern

 
Sorin Ciolofan
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Hello!

I'd like to refer to Cade's book for preparation of the SCEA exam and also to the tackling of Part 2.
In the mentioned book there is an example for the JustBuildIt company. For the text that is given for the assignment one can infer that a web service application needs to be done. There is nothing in the requirements of the problem about the fact that a web application with presentation layer in the form of jsp's would be required.
My impression is that the proposed solution though is about how to build a web application in the MVC paradigm rather than how to solve the problem of the web services. Did anyone else have the same impression?
I'm wondering why it was proposed a solution with JSP's, Controllers, etc when the text of the problem does not require that? The solution presents jsp's on how to search for bids, orders etc, while from the text of the problem we can infer that the clients of the application will use web services and not jsp's.

Any comments on this will be highly appreciated, since my impression is that the same kind of confusion could exist in REAL Part2 assignments.

Thank you
With best regards,
Sorin

 
Jeanne Boyarsky
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Sorin,
There has to be some sort of front end for the human users to post products, bid on availability notices and select winners. (The three use cases.) A web service means those screens could be in another system. But there's nothing in the scenario description to suggest that is the case either. And assuming another system does the bulk of the work trivializes the problem making it a risky part 2 strategy.

If you haven't seen the Cade & Sheil FAQ page, take a look before you start part 2. It lists the things people have found in the sample solution in the book that aren't advisable.
 
Jari Timonen
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The solution is quite "unique" in the book. Class-diagram is front-end centric. Whole back-end is missing.
 
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