Software as a service (SaaS)
Think of SaaS as the off-the-shelf option for getting into cloud computing. It's usually a standard set of offerings that are available for immediate implementation on a pay-as-you-go basis. This allows you to take advantage of new technologies quickly. You may already be using SaaS in your personal life without really thinking about it. If you use a web-based email or calendar service, then you are using a form of SaaS.
In addition to offering a pay-as-you-go deployment approach, SaaS means you also only pay for what you need, enabling you to scale software services and data storage as they are needed. If one of your organizational imperatives is to have a more mobile workforce, SaaS can be the answer. Service providers take care of enabling the cloud-based software to run on most types of computers and mobile devices and manage access and security.
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