Controlling access to resources is one of the most important protection goals for web-based services in practice. In general, access control requires identification of subjects t...
One of the most promising future applications in the domain of mCommerce is the mobile payment. Different approaches come to the market and try to address existing needs, but up t...
The Semantic Web, also known as the Web of meaning, is considered the new generation of the Web. Its objective is to enable computers and people to work in cooperation. A requisit...
The ‘theorise-inquire’ technique is described, which supports the testing of both experts’ hunches and the quality of data sources. This technique is useful for the identifi...
Autonomic Computing is a promising new concept in system development. It aims to (i) increase reliability by designing systems to be self-protecting and self-healing; and (ii) inc...
The Internet has enabled a great amount of information to be readily available and easily accessible. It has promoted several changes in the world, including in the education area...
Sean W. M. Siqueira, Maria Helena Lima Baptista Br...
We present the framework of a new grid architecture based on the peer-to-peer and the component paradigms. In our architecture, several peer-to-peer components are loosely coupled...
In business, the retrieval of up-to-date, or fresh, information is very important. It is difficult for conventional search engines based on a centralized architecture to retrieve ...