When you are setting up a technology stack for new business application, well any kind of application really, one of most basic decision is what presentation tier technology you will use.
You have to ask two basic questions.
- What is demanded richness of user experience?
Must be very responsive? Do you need fancy data manipulation? Will application handle large amount of data? Are those very dynamic? Will application be used just to present data?
- How accessible application must be?
How portable your application really must be? What will be typically users of this application? What client software and hardware platforms are targeted? How often the application will change/update?
This picture nicely summarize those questions, what technology you should use based on your answers to those questions.
To answer to the question in the title. As far as I know typically business application and if I answer to the user experience and accessibility questions I would definitely say, Silverlight technology delivers the best trade off between user experience richfullness and accessibility that typically business application nowadays requires.
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