Componentising a scientific application for the grid

CoreGRID is a Network of Excellence funded by the European Commission under the Sixth Framework Programm

A Study of Languages for the Specification of Grid Security Policies 1

This report presents a study of various semantic languages. Our objective is to identify the most suitable language for the specification of grid security policies. A policy-driven approach to security requirements of grid data management systems (GDMS) heavily relies on the choice of some appropriate language for the expression of the policies. In this report, we have first identified a number of semantic languages that can be employed for the specification of grid security policies followed by a comparative analysis of these languages. We have used several criteria for the comparison of these languages – such as their suitability to specify grid security policies, their expressiveness, their representation techniques, their reasoning strength, and their deployment characteristics

Grid

World Wid

CoreGRID- Network of Excellence

Security management is important for the effective functioning of a grid system. Here we present a security management model developed for the lightweight multilevel grid system. We decided to implement a role based security model, where a number of roles are defined for the grid. Different roles have different access restrictions. They are assigned to users and this is how users receive rights in the grid. Every cluster in the grid has security service, which handle user's identification and access control. The role based access control allows us to incorporate some simple access decision logic in the information service, which makes controlling user rights easier. Further in this paper we compare our security architecture with that of the lightweight middleware H2O and MOCCA in order to identify the important requirements, common concepts and technical solutions which may be reused

Scheduling for Fast Turnaround Time on Institutional

Desktop grid