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Companies are using .NET (and COM+) to create the full range of
enterprise level applications. Roger Sessions has written several articles that compare the J2EE platform to COM+ and .NET. Click here for several .NET case studies.
Now it's time for me to step up on my soap box (no pun intended). Many
companies (especially large companies) eschew the Windows-based
solution, not because of reality-based reasoning, but more because of
preconceived notions and philosophical differences. Check out http://www.tpc.org and you will find that Microsoft Solutions are
always at the top of the scalability ladder. So it isn't that
Microsoft solutions aren't scalable.
There is a fundamental difference in the way that Microsoft solutions
scale and the way J2EE applications are usually designed. J2EE
applications are commonly designed to scale UP, that is by using
bigger iron, and Microsoft solutions tend to scale OUT, that is you
add more servers to the cluster to handle increased load. Is one
better than the other? Well, when you add up the dollars and cents,
Microsoft usually comes out to be significantly cheaper - in
hardware, software licenses and development costs. So it isn't
because Microsoft is more expensive.
I have a Powerpoint presentation that might be helpful to you
available here. It was used in several seminars we did to compare J2EE and .NET. Now, I also like J2EE. The fact is that both platforms are theoretically infinitely scalable (there is a Sun white paper that
actually says that in the presentation).
For pre-.NET enterprise design I have found Enterprise Application Architecture with VB, ASP and MTS (Wrox) to be quite helpful.
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