Cloud computing is a significant technological innovation that allows the remote access to computing services at the central infrastructures of providers. The offered quality in several cases is specified through guarantees about the reliability and performance of the service along with the privacy of the personal data. Often the free access to cloud services is accompanied by advertisement messages that at some extent can be controlled by the user through available options. In the presentation we examine the user-friendliness and clarity of the interfaces in the control of the offered quality of service. The choice architecture and the help through default options is often specified not only by the preferences of the user but mainly by the priorities of the provider. Thus, there are general issues opened up for the guarantees that the services should provide and their consistency with respect to serving the real needs of the user.
Department of Computer Science and Engineering, University of Ioannina