MEDES
2010
ACM
12 years 11 months ago
2010
ACM
This work presents a case of an innovative Brazilian experience of use of free software in public administration as an emergent ecosystem, and the attempt to establish a quality f...
MEDES
2010
ACM
12 years 11 months ago
2010
ACM
We report a novel deployment of so-called UBI-hotspots in a city center to establish an ecosystem infrastructure for conducting diverse urban computing research and business in au...
MEDES
2010
ACM
12 years 11 months ago
2010
ACM
In this paper, we describe a security model where users are allowed to control their obligations partially or totally, depending on the security policy. The main motivation of our...