Overview of all keyword tags in articles

Infrastructure service provides a range of shared structured network services called on by content providers, brokers, aggregators, indexes, catalogues and portals. Infrastructural services include authentication, authorisation, service registry, user preferences, resolver, institutional profile, metadata schema registry and terminology services. (Excerpt from <a href="http://www.ukoln.ac.uk/distributed-systems/jisc-ie/arch/glossary/">JISC Information Environment Glossary</a>)