Ideas for SOA Service Components [closed]

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I am an undergraduate student from Mumbai University, now in my final year. The topic for our undergraduate project is "Service Oriented Architecture". As a part of this project, we are supposed to build reusable web service components, and then create a demo web application using those services.

Please suggest me some ideas for the kind of service components that would be easier to build, and then can be used in a demo web app.

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Dictionary web service.

• Word look ups
• synonyms
• sending mp3's for pronunciation guides
• different forms of words
• usage guide

There are lots of things you could do with a dictionary web service.

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Here are some practical examples of how to build a SOA using WCF.

I would suggest you read articles by Thomas Erl and Roger Sessions, this will give you a firm handle on what SOA is all about.

Building a SOA

SOA Design Pattern

Achieving integrity in a SOA

Why your SOA should be like a VW Beetle

SOA explained for your boss