This seems a strange question that you probably already have some concept of "the cloud". However, taking into account some of the talks I have had recently, I think that there is a large cloudy thinking about cloud computing.
This is the essence of what the cloud is (imho) summarized for you in a series of vignettes:
"Cloud Computing" is currently a marketing undecima And that is why I am writing this; I divorce the use of Cloud Computing, the term of marketing, the use of Cloud Computing as an architectural idea. Terms of marketing do not have to conform to precise definition. Get used, abused, then severely exploited and ultimately as your shopping cart traps to stop, was launched on the stack sorry buzz breaks words. This is what happened with "eBusiness", "Web services", "On Demand" and so on. Until the recession began in earnest Cloud Computing is a reasonably healthy marketing term. That is now changing because, in the minds of the audience for you, the cost of cloud computing is lower. Does cloud the word du jour hype.
Cloud Computing isn't SaaS (Software as a service). I'm making this point as some commentators have been equated these two ideas as if they were identical. SaaS is the healthy terminology. SaaS is out-hosted software that can be accessed directly. Although you might not think of it as such, its capacity of electronic banking is SaaS - just not pay directly. As electronic banking is not different from Zoho or Google Apps. However, electronic banking is definitely not Cloud Computing, no matter how much it stretches the definition.
Cloud computing is not to emulate Google It looks suspiciously like the initial cloud computing by enthusiasm as a technology strategy was driven by Google envy. Google is doing something unprecedented in the huge construction of data centers to support your business. Clearly was a fact which was highly efficient operation of Google and some CIOs pondered about whether Google could emulate. Really there was no chance, because the Google business was defined by only two unusual transactions: searching the web and placement of ads. Google has designed a huge operation massively parallel through switches built themselves within an architecture that optimized for precisely this workload and servers. Can't be emulated that less that, as some social networking sites have a small variety but a large number of transactions. As you would expect, some social networking sites have emulated to Google.
Cloud Computing is on battery technology It is on battery technology in the same way that the ISP business is on cloud computing technology stacks. General ISP provide a consistent service to countless web sites that host using a stack of standard technology, most commonly, the LAMP (Linux, Apache, MySQL, PHP) stack. This means that the administration effort is minimal because everyone is running the same application (a web site) with the same technology (lamp), where customers have problems, the same issues are normally cut and again.
Cloud Computing is about economies of scaleThe only thing everyone seems to agree on Cloud Computing is that it is built of scale and is hosted on a set of resources that are different from the typical it network. In other words in "the cloud" is an attempt of architecture to build scale. The majority of the deals from the cloud will be based on scalability. The truth is that if you are going to have a very large data center and organize its use for what most of the workloads are very similar, or better, identical, you achieve significant economies of scale. It can then offer the service at prices that undermine the costs of the application in internal customer. More customers achieve better cost advantage.
Cloud is not Outsourcing of computer scienceThe typical data corporate center is not a cloud and will never be one. Their workloads mingle mingle platforms run on - stack technology all is mixed. This means that not all data center can transform into a cloud operation. However, you can outsource.
There is no cloud computing standards? Really not, or perhaps better to say "not yet". Cloud computing infrastructure is generally based on servers that use virtualization technology to deliver the efficient use of resources and carry out usually by open standards and, for the sake of the economy, use widely open source software. There is an organization formed by a group of universities, called open cloud Consortium (OCC), which promotes open frames allowing clouds operated by different organizations working together without any problems.
There is such a thing as an internal cloud? Once again, really not, or perhaps better, said "not yet". There is a sense in organizations create "domains" within their own networks based on type of cloud architectures, especially if they have applications that may need to scale over time. If there were rules cloud then such domains could be considered as internal clouds. They would become the areas of trial to possibly move internal applications in the cloud, or if the Organization has their own software which is intended to provide as a service, then such domain could become the platform to provide that service.
Do is Cloud Computing anything with Web 2.0? Nothing at all at all. But you can make the connection if you want to. Many websites saying that Web 2.0, mainly because they are social networks sites, have had to climb dramatically when its user population fired million. Due to have had to adopt highly scalable architectures (or die). Because they have such architectures can be in a good position to offer certain services to users in the form of cloud computing.
Do clouds offer guaranteed service levels? The answer is "Yes" or at least should be, and in the future will surely be. We need to exclude free services, such as Yahoo Mail and many of Google's services, which can be described as Cloud Computing from more perspectives, because a free service will never offer guarantees (even if it makes an excellent life of ads). But Cloud Computing ultimately will be defined, from the perspective of the user, by levels of service and the nature of the service itself. If Cloud Computing Services are well defined that way, then it becomes possible to compare these services with the cost of providing a similar capacity from its own data center, as the Cloud Computing provider is transparent to provide details of the technology it deploys.
Robin Bloor, analyst of technology, research of founding Bloor, partner Hurwitz & Associates, authors blog is at http://www.havemacwillblog.com
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