Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2012.946.958AzedineBoulmakoul NoureddineFalih RabiaMarghoubi 82012118Strategic information system alignment is considered as one of the main pillars of the information systems governance in the company. In this study, we propose an original holistic approach centred on the extended enterprise meta-model (ISO/DIS ISO 19440 2007). This meta-modeling incorporates specific structures borrowed from best practices for driving the IT process of COBIT. Such a structure can bring systemic tools from the structural paradigm for a better assessment of the Strategic Information System Alignment. In this work we deploy this approach through a case study in a leading Moroccan telecommunications operator. We use particular, the Galois lattice and Guttman scales for the process reengineering.]]>Alfantookh, A.A., K.M. Al-Hazmi and S.H. Bakry,20082113Samson, A.A.J. Mary, B.F. Yemisi and I.O. Erekpitan,201266169Birkhoff, G.,1940Boulmakoul, A., N. Falih and R. Marghoubi,20092009pp: 10701081Boulmakoul, A., A. Idri and R. Marghoubi,20072007pp: 519524Guttman, L.,19449139150Henderson, J.C. and N. Venkatraman,199332472 484ISACA,2008® 4.1.]]>2008ISO 19440,20072007Kaur, K. and H. Singh,201041629Lederer, A.L. and V. Sethi,199292545Luftman, J. and E.R. Maclean,2004389104Khiyal, M.S.H., M.A. Zia, K. Riaz and N. Khalid,20032240249Weske, M.,20071st Edn.,Pages: 382Pages: 382OMG,20052005Suri, P.K. and R. Soni,20076813Rungruang, P.,201264051Farshadnia, R.,200216974Sharma, S., A. Tiwari, S. Sharma and K.R. Pardasani,200711118Wille, R.,19821982pp: 445-470pp: 445-470Zheng-Quan, X., H.H. Najapuka and Y. Xu,2003214