Early in my career, I worked for IBM. Back then, the “glass house” data center controlled access to all information technology resources. This model demanded centralized management of IT assets, tight control over all development efforts, and long planning horizons. Stability, reliability, and rigidity were hallmarks of this era.
Eventually, however, the enormous cost and slow pace of this model was its own undoing. First, it failed because of the growth of distributed computi
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