The world today is witnessing an explosion of technologies that are remodelling our entire reality. The traditional way of thinking in the business field has shifted towards a new IT breakthrough: cloud computing. The cloud paradigm has emerged as a natural step in the evolution of the internet...

Governments from all around the world spend considerable amounts on IT, with the aim to improve security, efficiency, transparency, and to deliver more interactive services to citizens and businesses. Cloud computing is a fundamentally new approach to IT, which may lead to significant cost...