Cloud computing as a model enabling a comfortable and flexible network access to computing resources represents a significant evolutionary step in provision of IT services, and basically it fulfils the long-time idea of IT as a service provider. The possibility of using practically unlimited computing capacity, or services on demand for a fraction of total costs, in comparison with the traditional IT model can be determined as revolutionary.
The main advantages of cloud computing include:
- cost effectiveness – there is no need to purchase and maintain an expensive hardware, which enables the company a change from CapEx model to OpEx model.
- traffic effectiveness – since resources are ordered “on demand”, the onset time to market is substantially reduced, moreover, cloud provides practically unlimited scalability.
- resource effectiveness – by minimization of the need for IT infrastructure maintenance and management, an option for transferring resources (financial as well as human) into business activities is increasing .
Using cloud requires, comparing to the traditional IT model, certain changes in IT processes and a change of access to some areas, especially in the area of information security.