General Diagram of a Knowledge Object

This figure depicts the parts of a type of DOs called Knowledge Objects (KOs). The core of the KO is a bit sequence encoding some machine processable knowledge. This core is referred to as the KO’s payload. For all KOs, the payload can be deployed automatically on the web as a webservice by software tools that act on the KOs Deployment and Service Descriptions. The KO and its payload are described by metadata of different kinds. The KO has a persistent identifier (PID) that facilities gaining access to its components