MEDES
2010
ACM
13 years 5 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
13 years 5 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
13 years 5 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...