T. Papadopoulos and P. Kanellis, Public Sector Reform Using Information Technologies: Transforming Policy into Practice, 2011.
DOI : 10.4018/978-1-60960-839-2

M. Janssen and W. S. Shu, Transformational government, Proceedings of the 2nd International Conference on Theory and Practice of Electronic Governance, ICEGOV '08, pp.117-122, 2008.
DOI : 10.1145/1509096.1509120

Z. Irani, T. Elliman, and P. Jackson, Electronic transformation of government in the U.K.: a research agenda, European Journal of Information Systems, vol.24, issue.4, pp.327-335, 2008.
DOI : 10.1016/j.giq.2007.01.002

Z. Irani, P. Love, E. , D. Elliman, T. Jones et al., Evaluating e-government: learning from the experiences of two UK local authorities, Information Systems Journal, vol.17, issue.1, pp.61-82, 2005.
DOI : 10.1080/09540969309387763

G. Walsham, The Emergence of Interpretivism in IS Research, Information Systems Research, vol.6, issue.4, pp.376-394, 1995.
DOI : 10.1287/isre.6.4.376

N. K. Denzin and Y. S. Lincoln, Collecting and interpreting qualitative materials, 1989.

A. Lee and R. Baskerville, Generalizing Generalizability in Information Systems Research, Information Systems Research, vol.14, issue.3, pp.221-243, 2003.
DOI : 10.1287/isre.

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

B. J. Oates, Researching information systems and computing. London; Thousand Oaks, 2006.

Å. Grönlund, M. A. Wimmer, J. Chappelet, M. Janssen, and H. J. Scholl, Ten years of eGovernment: the end of history and a new beginning, 2010) Electronic Government. 9th IFIP WG 8.5 International Conference. Proceedings. LNCS 6228, pp.13-24, 2010.

E. M. Rogers, Diffusion of Innovations, 1995.

M. J. Moon, The Evolution of E-Government among Municipalities: Rhetoric or Reality?, Public Administration Review, vol.62, issue.4, pp.424-433, 2002.
DOI : 10.1111/0033-3352.00196

J. Moon and D. Norris, Does managerial orientation matter? The adoption of reinventing government and e-government at the municipal level, Information Systems Journal, vol.31, issue.1, pp.43-60, 2005.
DOI : 10.1093/oxfordjournals.jpart.a003505

D. F. Norris and D. Campillo, Factors Affecting Innovation Adoption by City Governments: The Case of Leading Edge Information Technologies, Maryland Institute for Policy Analysis and Research, 2000.

S. Angelopoulos, F. Kitsios, P. , and T. , Identifying Critical Success Factors in e-Government: A New service development approach. Transforming Government: People, Process and Policy, vol.4, issue.1, pp.95-118, 2010.

W. H. Delone and E. R. Mclean, Information Systems Success: The Quest for the Dependent Variable, Information Systems Research, vol.3, issue.1, pp.60-95, 1992.
DOI : 10.1287/isre.3.1.60

F. Davis, Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology, MIS Quarterly, vol.13, issue.3, pp.319-340, 1989.
DOI : 10.2307/249008

I. Ajzen and M. Fishbein, Attitudes and normative beliefs as factors influencing behavioral intentions., Journal of Personality and Social Psychology, vol.21, issue.1, pp.1-9, 1972.
DOI : 10.1037/h0031930

F. D. Davis, R. P. Bagozzi, and P. R. Warshaw, User Acceptance of Computer Technology: A Comparison of Two Theoretical Models, Management Science, vol.35, issue.8, pp.982-1003, 1989.
DOI : 10.1287/mnsc.35.8.982

I. Benbasat and H. Barki, Quo vadis TAM, Journal of the Association for Information Systems, vol.8, issue.4, pp.211-218, 2007.

W. R. King and J. He, A meta-analysis of the technology acceptance model, Information & Management, vol.43, issue.6, pp.740-755, 2006.
DOI : 10.1016/j.im.2006.05.003

J. Schepers and M. Wetzels, A meta-analysis of the technology acceptance model: Investigating subjective norm and moderation effects, Information & Management, vol.44, issue.1, pp.90-103, 2007.
DOI : 10.1016/j.im.2006.10.007

V. Venkatesh and F. Davis, A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies, Management Science, vol.46, issue.2, pp.186-204, 2000.
DOI : 10.1287/mnsc.

V. Venkatesh and M. G. Morris, Why Don't Men Ever Stop to Ask for Directions? Gender, Social Influence, and Their Role in Technology Acceptance and Usage Behavior, MIS Quarterly, vol.24, issue.1, pp.115-139, 2000.
DOI : 10.2307/3250981

D. Gefen and D. Straub, The relative importance of perceived ease of use in IS adoption: a study of e-commerce adoption, Journal of the Association for Information Systems, vol.1, pp.1-28, 2000.

J. Moon and Y. Kim, Extending the TAM for a World-Wide-Web context, Information & Management, vol.38, issue.4, pp.217-230, 2001.
DOI : 10.1016/S0378-7206(00)00061-6

D. Gefen, E. Karahanna, and D. Straub, Trust and TAM in online shopping: an integrated model, MIS Quarterly, vol.27, pp.51-90, 2003.

V. Venkatesh, M. G. Morris, G. B. Davis, and F. D. Davis, User acceptance of information technology: Toward a unified view, MIS Quarterly, vol.27, issue.3, pp.425-478, 2003.

M. Shajari and Z. Ismail, A comprehensive adoption model of e-Government services in developing countries, 2010 IEEE International Conference on Advanced Management Science(ICAMS 2010), pp.548-553, 2010.
DOI : 10.1109/ICAMS.2010.5552982

L. Carter and F. Bélanger, The utilization of e-government services: citizen trust, innovation and acceptance factors, Information Systems Journal, vol.12, issue.1, pp.5-25, 2005.
DOI : 10.1145/1007965.1007969

L. Paul, I. John, and C. Pierre, Why do people use information technology? A critical review of the technology acceptance model. Association for, Information Systems, vol.40, issue.3, p.191, 2003.

Q. Ma and L. Liu, The Technology Acceptance Model: A Meta-Analysis of Empirical Findings, Journal of Organizational and End User Computing, vol.1, issue.16, pp.59-72, 2004.

S. Taylor and P. A. Todd, Assessing IT Usage: The Role of Prior Experience, MIS Quarterly, vol.19, issue.4, pp.561-570, 1995.
DOI : 10.2307/249633

K. Barzilai-nahon and J. Scholl, Siblings of a Different Kind: E-Government and E-Commerce, IFIP e-Government Conference, 2010.
DOI : 10.1007/978-3-642-14799-9_3

URL : https://hal.archives-ouvertes.fr/hal-01056568

P. Pavlou, Consumer acceptance of electronic commerce: integrating trust and risk with the technology acceptance model, International Journal of Electronic Commerce, vol.7, pp.69-103, 2003.

J. Sipior, . B. Ward, and R. Connolly, The digital divide and t-government in the United States: using the technology acceptance model to understand usage, European Journal of Information Systems, vol.27, issue.4, pp.1-21, 2010.
DOI : 10.1016/j.giq.2003.08.005

D. Pilling and H. Boletzig, Moving toward egovernment ? effective strategies for increasing access and use of the internet among non-internet users in the U.S. and U.K, Proceedings of the 8th Annual International Conference on Digital Government Research: Bridging Disciplines & Domains Philadelphia ACM International Conference Proceeding Series 228 Digital Government Research Center, pp.35-46, 2007.

V. Weerakkody, M. Janssen, and K. Hjort-madsen, Realising Integrated E-Government Services: A European Perspective, Journal of Cases in Electronic Commerce, vol.3, issue.2, pp.14-38, 2007.

J. Fulk, SOCIAL CONSTRUCTION OF COMMUNICATION TECHNOLOGY., Academy of Management Journal, vol.36, issue.5, pp.921-950, 1993.
DOI : 10.2307/256641

J. Fulk, J. Schmitz, and C. W. Steinfield, A Social Influence Model of Technology use, 1990.
DOI : 10.4135/9781483325385.n6

R. Kling, Learning About Information Technologies and Social Change: The Contribution of Social Informatics, The Information Society, vol.16, issue.3, pp.217-232, 2000.
DOI : 10.1080/01972240050133661

R. Williams and D. Edge, The social shaping of technology, and Communication Technologies: Visions and Realities, 1996.
DOI : 10.1016/0048-7333(96)00885-2

D. Remenyi, Doing research in business and management: an introduction to process and method, 1998.
DOI : 10.4135/9781446280416

J. Hussey and R. Hussey, Business research: a practical guide for undergraduate and postgraduate students, 1997.
DOI : 10.1007/978-1-349-25262-6

M. D. Myers, Qualitative Research in Information Systems, MIS Quarterly, vol.21, issue.2, pp.241-242, 1997.
DOI : 10.2307/249422

J. Carroll, L. L. Dawson, and P. A. Swatman, Using Case Studies to Build Theory: Structure and Rigour, At Proceedings of 9th Australasian Conference on Information Systems, 1998.

J. Carroll and P. Swatman, Structured-case: a methodological framework for building theory in information systems research, European Journal of Information Systems, vol.9, issue.4, pp.235-242, 2000.
DOI : 10.1057/palgrave.ejis.3000374

W. L. Neuman, Social Research Methods: Qualitative and Quantitative Approaches, 1991.

E. Gummerson, Qualitative Methods in Management Research, 1991.

R. D. Galliers, Reflection on Information Systems: Twelve Points to Debate. Berkshire, UK, Information Systems: An Emerging Discipline, 1997.

P. J. Hu, P. Y. Chau, O. R. Sheng, and K. Y. Tam, Examining the Technology Acceptance Model Using Physician Acceptance of Telemedicine Technology, Journal of Management Information Systems, vol.12, issue.4, pp.91-112, 1999.
DOI : 10.1258/1357633961929790

C. M. Jackson, S. Chow, and R. A. Leitch, Toward an Understanding of the Behavioral Intention to Use an Information System, Decision Sciences, vol.21, issue.10, pp.357-389, 1997.
DOI : 10.2307/249085

W. Hong, J. Y. Thong, W. Wong, and K. Tam, Determinants of user acceptance of digital libraries: An empirical examination of individual differences and system characteristics, Journal of Management Information Systems, vol.18, issue.3, pp.97-124, 2002.

M. R. Stafford and B. Stern, Consumer bidding behavior on Internet auction sites, International Journal of Electronic Commerce, vol.7, issue.1, pp.135-150, 2002.

A. M. Rubin, The uses-and-gratifications perspective of media effects. Media Effects: Advances in Theory and Research, 2002.

F. Bélanger, J. Hiller, and W. Smith, Trustworthiness in electronic commerce: the role of privacy, security, and site attributes, The Journal of Strategic Information Systems, vol.11, issue.3-4, pp.245-270, 2002.
DOI : 10.1016/S0963-8687(02)00018-5

H. Mcknight, V. Choudhury, and C. Kacmar, Developing and Validating Trust Measures for e-Commerce: An Integrative Typology, Information Systems Research, vol.13, issue.3, pp.334-359, 2002.
DOI : 10.1287/isre.13.3.334.81

W. H. Dutton, P. H. Cheong, and N. Park, An Ecology of Constraints on e???Learning in Higher Education: The Case of a Virtual Learning Environment1, Prometheus, vol.22, issue.2, pp.131-149, 2004.
DOI : 10.1080/0810902042000218337

M. Lee and E. Turban, A trust model for internet shopping, International Journal of Electronic Commerce, vol.6, pp.75-91, 2001.