Realization of subjective tests in the environment of streaming services

Increasing requirements on video quality seem to be essential while designing any video-oriented services. The methods in the user-centered design of services are fairly labor intensive and have to consider resulting value of user experience. However, user experience is a term that is currently very hard to be defined. There are different approaches to user experience assessment, which lack an ultimate method to predict expected user experience. In this article, we introduce a system that enables web service providers to measure quality of service provided to end-users while playing online video content that is approached via http progressive streaming. This tool is also suitable for future educational purposes in the field of video quality evaluation.