New technologies, such as virtual and remote laboratories, have improved learning and
training in the academic community. They allow students to acquire methods, skills and
experience related to real equipment in an intuitive and cost-effective way. This paper
presents the…

In this paper a methodology for accesing scientific data repositories on data grids is proposed. This methodology is based on ontology specification and knowledge representation. The concept of Knowledge Perspective is introduced, as the action of applying particular scientific conjectures…