This presentation makes a case for looking at SOA in a practical way – it is a good idea but one that is realized keeping in mind the ground realities.
A service oriented architecture, combined with application and network convergence can provide a means for effective business collaboration.
This white papers discusses how.
With service-oriented architecture (SOA), good things don't come to those who wait. While companies shouldn't abandon building a business case for SOA, they should, in the interest of speed, take a simpler, more intuitive approach.