Journal of Electronic Systems A. Zeaaraoui, Z. Bougroun, M.G Belkasmi, T. Bouchentouf Belkasmi 2 4 2012 http://www.dline.info/jes/fulltext/v2n4/1.pdf In the software development process, developers feel the gap when moving from requirement engineering phase (using scenario-based approach) to construction phase; this is due to that models result in RE cannot be easily mapped to models in construction phase. This paper discusses this problem, and offers a new approach that handles this issue so that developers feel no break during all software development activities from RE to coding and testing.