Vicente Garcia Diaz, Universidad de Oviedo, Spain. Juan Manuel Cueva Lovelle is a Mining Engineer from Oviedo Mining Engineers Technical School in 1983, Oviedo University, Spain. Ph. D. from Madrid Polytechnic University, Spain (1990). From 1985 he is a Professor at the Languages and Computers Systems Area in Oviedo University, Spain. ACM and IEEE voting member. His research interests include Object-Oriented technology, Language Processors, Human-Computer Interface, Web Engineering, Modelling Software with BPM, DSL and MDA. Begona Cristina Pelayo Garcia-Bustelo, University of Oviedo, Spain. Oscar Sanjuan Martinez, University of Oviedo, Spain.