In so doing, you have adopted a software deployment model (SaaS) first introduced in the early part of this decade... Granted, the model has only recently become popular because of big players getting into the fray, but SaaS (while a big chunk of the Cloud model) is still just scratching the surface.
With hyper-fast Internet access becoming cheaper and the Web becoming more ubiquitous than ever, there is a whole new realization in the industry that everything that was traditionally managed in-house can in fact, be moved out to being a shared resource as long as there is data security, validation and accessibility. Whether that is a fleeting phenomenon like many such hype cycles before it, or here to stay remains to be seen... but there is no doubt that a lot of Venture Capital investment has gone into it already (and more flowing in every week).
Now, if you map your existing stack from the data center to the Cloud, you get 3 basic kinds of Cloud offerings: Software (SaaS), Platform (PaaS) and Infrastructure (IaaS).
Last year, when I first looked at the Cloud offerings, there were precious few options - and the ones that were reliable (for corporate environments) were all established players doing limited things. But as you can see in the illustration above, there are a whole new set of companies (and a few who have repositioned themselves) to provide value in everything from building infrastructure in the Cloud (Amazon, Rackspace, Go Grid, to name a few), providing a platform for application development (e.g. Microsoft Azure, Google App Engine, Force.com, Heroku, Engine Yard) as well as lots of new and established SaaS providers.
SaaS software has also come a long way from the first application for sales automation. Today, we can get SaaS for everything from utility / small business needs to complex ERP (NetSuite), Corporate Email (Microsoft Exchange Online, Google Mail
Original Article - Here
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