political developments in algeria throughout the years after the second world war have attracted the attention of many analysts. a country that, due to its fights for independence as well as against colonialism, was a source of inspiration for many freedom fighter movements of the world, during the ending years of the last century, exposed to one of the most terrible violence and civil war. so ...

The role of the users and their needs are now recognized in the database community. Many efforts are devoted to improve the quality of the interaction between the user and the database. For designing better interfaces that make the systems more usable, the use of suitable metaphors is crucial. The problem we address in this paper is whether an appropriate notion of metaphor can be tailored to t...