I started following and writing about topics like Amazon Web Services and mashups even before they were corralled under the "cloud computing" moniker. But today, cloud computing is one of the hottest topics in IT.
Much of what I write about the cloud drills down on particular aspects or is a reaction to some vendor's announcement. Here I'm going to take a different approach and take a broader look at where things stand today and some of the challenges ahead.
1. Let's get one thing out of the way first. Cloud computing is real. Yes, there's a lot of hype and a lot of "cloud-washing" (applying the cloud term to only peripherally-related things). But cloud computing legitimately refers to a convergence of technologies and trends that are starting to make IT infrastructures and applications more dynamic, more modular, and more network-centric.
2. The industry has reached a rough consensus on a basic taxonomy for public clouds. We have infrastructure as a service (e.g. Amazon Web Services), platform as a service (Microsoft's Azure), and software as a service (Salesforce.com). People may quibble about some of the details and about how to characterize standalone Web services and such but IaaS, PaaS, and SaaS have developed into a convenient shorthand for describing the basic levels of abstraction for network-based computing.
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Source: news.cnet.com
By: Gordon Haff
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