Towards A Pan-European Learning Resource Exchange Infrastructure

The Learning Resource Exchange (LRE) is a new service that provides schools with access to educational content from many different origins. From a technical standpoint, it consists of an infrastructure that:- Federates systems that provide learning resources - e.g., learning resource repositories, authoring tools - and- Offers a seamless access to these resources by educational systems that; enable their use - e.g., educational portals, virtual learning environments (VLEs).As the number of connected systems increased over time, this infrastructure had to evolve in order to improve the quality of its search service.This paper describes the current LRE infrastructure and explains the rationale behind its evolution.