Abstract
In this paper we present an exploratory study in operating system (OS) reliability. We focus on OS reliability from the user quality of experience perspective. Our approach considers not only OS Kernel failures, but also failures observed in OS distribution components, because the OS user experience is also affected in the latter case, regardless of the correct OS Kernel functioning. We adopt this approach under the assumption that ordinary computer users do not have sufficient technical skills to discriminate when a failure in the OS operation is caused or not at Kernel level. Hence, we look for reliability measures that are closer to the users' perception about the OS quality. We analyzed 2,634 OS failures from 106 real computers, and calculated several reliability metrics for the investigated operating systems.
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