170 Int. J. Electronic Governance, Vol. 3, No. 2, 2010 Copyright © 2010 Inderscience Enterprises Ltd. Advanced e-government enterprise strategies and solutions Athanasios Karantjias* Department of Computer Science, University of Piraeus, Piraeus 18532, Greece E-mail: karant@unipi.gr *Corresponding author Teta Stamati and Drakoulis Martakos Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Panepistimiopolis, Ilissia 15784, Greece E-mail: teta@di.uoa.gr E-mail: martakos@di.uoa.gr Abstract: Extensively used distributed e-government solutions did not succeed to gain Governmental Organisations’ (GOs’) and end-users’ acceptance since they did not fulfil core requirements such as interoperability, scalability/extensibility, security and trust, and high administration. This paper presents an innovative Local Government Access Framework (LGAF), deployed for the Central Union of Municipalities and Communities of Greece, providing insights to critical success design factors for reengineering mission critical legacy systems so that they can operate in and take full advantage of a user-centric e/m-government environment. The LGAF integrates almost 250 government services in many different domains of the public administration such as in health, social care, education, public transportation, cultural, and others, integrating peak XML technologies, worldwide standards and specifications. Keywords: interoperability; security; privacy; content management; business process management; identity and access control; e-government. Reference to this paper should be made as follows: Karantjias, A., Stamati, T. and Martakos, D. (2010) ‘Advanced e-government enterprise strategies and solutions’, Int. J. Electronic Governance, Vol. 3, No. 2, pp.170–188. Biographical notes: A. Karantjias has obtained the Degree of Electrical and Computer Engineering from the University of Patras in 2000 and a PhD in Computer Science from National Technical University of Athens in 2005. He is currently Assistant Professor at the Department of Computer Science of University of Piraeus. His current research interests include identification, design and evaluation of synchronous security and interoperability issues on enterprise architectures and advanced wireless information systems. T. Stamati has obtained a Degree in Computer Science from National and Kapodistrian University of Athens. She holds an MPhil in Enterprise Modelling Techniques from the University of Manchester Institute of Science