Metrics in an Open Access environment: an infrastructure for collecting and aggregating usage data

Although recording of usage data is common in many scholarly information services, digital libraries or institutional repositories, its exploitation for the creation of valueadded services remains limited due to concerns regarding, among others, user privacy, data validity, and the lack of accepted standards for the representation, sharing and aggregation of usage data. This talk presents an infrastructure for overcoming this limitations which is based on webserver as well as linkresolver log-files and uses OAI-PMH and OpenURL ContextObjects. The talk is based on work carried out within a project funded by the Deutsche Forschungsgemeinschaft (DFG) and also builds on the work done at the Los Alamos National Laboratory (LANL) Digital Library Research and Prototyping Team.