Polytechnic of Turin
Now-a-days, one of the main challenges in developing different systems is obtaining reliable ones. So, preliminary studies of problematic atomic components which convert the system from reliable to unreliable need to be done. This paper is focused in evaluating one of the nonfunctional characteristics like the reliability of web applications in cloud environment. Nonfunctional characteristics such as reliability, security and availability of a web service application and hence its service components play an important role in evaluating the system performance of the web application.