By Kalali
via soa.dzone.com
Published: Nov 20 2009 / 23:54
Before we talk about Cloud, I want to quickly review where SOA came from. Most of us who started our IT careers in the 80s and 90s will clearly remember the pre-web Enterprise environment. Of course, so will everyone else - because that legacy is still with us. The typical systems were monolithic, complex applications that were completely self-reliant. Any interfacing with other systems was done through batch dumps. Applications grew and grew and grew into monsters because the only option was to enlarge the application - inter-application connectivity was too complex and unreliable to envisage.
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