This paper describes the development of an end-to-end quality measurement method that allows us to quantify the perceived quality of interactive gaming. with an emphasis on the so-called first person shooter (FPS) game quake IV. We conducted a number of subjective experiments to quantify the impact of network parameters on the perceived quality of this recent FPS game. Making use of a multi-dimensional regression analysis we developed the Quake IV G-model which enables us to predict a gamer's Quake IV quality rating (expressed in a Mean Opinion Score) based on measured ping and jitter values. Our G-model shows a very high correlation (R-0.98) with the subjective data.@en

End-to-end tests and evalutations, as a proof of concept, are essential tool in the development of innovative telecommunication concepts and platforms. Within the integrated project MUSE (Multiservice access erverywhere) we have put extensive efforts in defining a complete test suite for full-service end-to-end testing. This test suite describes what and how to test. In this paper we focus on one specific aspect of the test suite i.e. perceived Quality of Service. The test suite for Voice over IP is presented and the results from a test setup between the Netherlands and Sweden, where the perceived QoS have been estimated for a particular network connection.@en