Application of cloud computing in business

Računalstvo u oblaku bilježi ogroman rast u području informacijske tehnologije posljednjih nekoliko godina te unosi velike promjene i izazove u poslovanje mnogih poduzeća. Zasniva se na principu da korisnik za svoje potrebe poslovanja iznajmljuje računalne resurse od pružatelja usluge umjesto da ih kupuje. Postoje tri osnovna modela koja se mogu iznajmiti, a to su softver kao usluga (SaaS), platforma kao usluga (PaaS) i infrastruktura kao usluga (IaaS). Opisani su svi modeli kao i neki od predstavnika svakog od njih. Glavna prednost poslovanja u oblaku je plaćanje po potrošnji, dok je glavni nedostatak pitanje sigurnosti.Cloud computing has witnessed an enormous growth in the information technology field in the past few years and it brings major changes and challenges in business activities of many companies. It is based on the principle that users rather rent computing resources for their business needs from the service provider than buy them. There are three basic service models for rent, and they are Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). All models are described as well as some of the representatives of each of them. The main advantage of cloud computing is pay-per-use, while the main disadvantage is the issue of security