The pros and cons of SaaS applications are well known -- and the pros greatly outweigh the cons, if we're to believe the analyst predictions. IDC, for example, forecasts that the worldwide SaaS market will reach $50.8 billion by 2018, up from $22.6 billion in 2013 -- a compound annual growth rate (CAGR) of 17.6 percent for the five-year period.

"Demand for SaaS enterprise applications is accelerating and exceeding the demand for on-premise applications by five times...Generally, wherever new enterprise application software is required, the expectation is that SaaS applications are preferred, particularly for customer relationship management ...

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