Brazil is an emerging economy with many IT initiatives from public and private sectors. To evaluate the progress of such initiatives, we study the geographical distribution of software developers in Brazil, in particular which of the Brazilian states succeed the most in attracting and nurturing them. We compare the prestige of developers with socio-economic data and find that (i) prestigious developers tend to be located in the most economically developed regions of Brazil, (ii) they are likely to follow others in the same state they are located in, (iii) they are likely to follow other prestigious developers, and (iv) they tend to follow more people. We discuss the implications of those findings for the development of the Brazilian software industry.
Through the past years, several digital rights management (DRM) solutions for controlled dissemination of digital information have been developed using cryptography and other technologies. Within so many different solutions, however, interoperability problems arise, which increase the interest on integrated design and management of these technologies. Pursuing these goals, this paper presents a framework which aims at promoting interoperability among DRM systems, using a serviceoriented architecture (SOA) and a high-level policy modeling approach.
The modelling of access control rules in terms of high-level policies has been subject of research over the last decade. Policies, in this context, define if an access is permitted or forbidden to be performed. However, they do not prescribe rules for the utilization of network resources. In this manner, a user or application might consume available resources with superfluous activities, hindering other high-priority users or applications to work properly. Following this motivation, our approach associate to a policy a set of requirements that must be fulfilled for each access. We adopt model-based management concepts, in which a policy is defined in terms of abstract entities and is represented at different levels of abstraction.
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