The infrastructure is the work area of the people who create and maintain the technical basis of knowledge networks and are responsible for links with other networks.
Other people active in this area are those who study the technical aspects of components that have been added to the infrastructure at a later stage, for instance people who have converted databases to reference structures, and ontology engineers who determine the technical design of a reference structure.
The RNA-project has chosen to adopt the RDF format to define reference structures and other structures, such as object descriptions and metadata linked to content. The complex network of RDF entities and their interrelations are referred to as the infrastructure.
The people who work on the infrastructure look under the hood of the system. For this engineering work no elegant tools are available that can prevent dirty hands or awkward mistakes. For this reason the environment is exclusively available to a small group of authorised persons.
Sesame has been developed by Aduna in collaboration with the Vrije Universiteit of Amsterdam as a research prototype for the EU project On-To-Knowledge. Aduna handles the further development and support of the platform in collaboration with Stichting NLnet.
The official Sesame site is available at www.openrdf.org.