In recent years, it has been realized that the success of multimedia
services or applications relies on the analysis of the
entire user experience (UX). The relevance of this paradigm
ranges from IPTV to video-on-demand systems offering professional
TV and user-generated content that is consumed
and produced ubiquitously. To obtain a pleasurable and
ubiquitous user experience a large amount of aspects have
to be taken into account. Major challenges in this context
include the identification of relevant UX factors and the
quantification of their in
uence on Quality of Experience
(QoE). In the particular scenario of ubiquitous production
and consumption of content, context awareness and assessment
of users' expectations play an essential role. This is
further justified by the emergence of new multimedia enhancement
techniques, notably 3DTV and Free Viewpoint.
In the support of ubiquitous QoE the acquired knowledge
on the context and on identified parameters affecting users'
experience could be used to improve mutimedia applications
and their associated content delivery mechanisms.
