A. I. Anton-]-p, S. Armenise, C. Bandinelli, A. Ghezzi, and . Morzenti, Goal based requirements analysisA survey and assessment of software process representation formalisms, Proceedings of the 2 nd International Conference on Requirements Engineering ICRE'96, pp.136-144, 1993.

C. Batini, S. Ceri, and S. Navathe, Conceptual Data Base Design : an ER approach, 1992.

. J. Bub, C. Bubenko, P. Rolland, V. Loucopoulos, ]. J. De-antonellis et al., Facilitating ' fuzzy to formal' requirements modelling Dimensions of IS Planning and Design Aids : A Functional Model of CASE Technology (Eds) IT and the corporation of the 1990's : research studies, Dow,93] M. Dowson : Software Process Themes and Issues , Proc. of the 2nd Int. IEEE Conf. on Software ProcessKar, 98] P. Kardasis, P. Loucopoulos, Aligning legacy information system to busness processes, pp.154-158, 1993.

. P. Lou, V. Loucopoulos, N. Kavalki, and . Prekas, Using the EKD approach, the modelling component. ELECTRA project internal report, 1997.

]. P. Martiin, M. Rossi, V. Tahvainen, and K. , Lyytinen : A comparative review of CASE shells -a preliminary framework and research outcomes, published in Information and Management, pp.11-31, 1993.

. V. Pli, J. Plihon, N. A. Ralyté, A. Maiden, E. Sutcliffe et al., A Reuse- Oriented Approach for the Construction of Scenario Based Methods, Accepted for the Int. Conf. On Software Process, 1998.

C. Rolland, C. Ben-achour, ]. J. Rumbaugh, M. Blaha, W. Premerlani et al., Guiding the construction of textual use case specifications, to appear in Data and Knowledge Engineering JournalObject-oriented modeling and design, Sis, 95] S. Si-Said, C. Ben Achour, A Tool for Guiding the Requirements Engineering Process Proceedings of the 6th Workshop on the Next Generation of CASE Tools, pp.23-42, 1991.