1. Faculty of Science and Technology Middlesex University The Burroughs London England NW4 4BT U.K.
2. Department of Information and Electronic Engineering International Hellenic University Sindos Thessaloniki GR‐57400 Greece
3. School of Technology and Innovation Vaasa University Wolffintie 34 Vaasa 65200 Finland
4. Faculty of Information Technology University of Jyväskylä P.O. Box 35 (Agora) Jyväskylä FI‐40014 Finland
5. IT Architecture Specialists Newbury Berks RG20 9TT U.K.
6. School of Media Arts and Technology Solent University Southampton U.K.