D1.5.3 Advanced Methods for Change Propagation between Networked Ontologies and Metadata

This document describes the implementation of the approach to modelling some of the dynamics of (semantic) metadata that were described in D1.5.1 [MPD + 07] and D1.5.2 [MPAD08]. We focus here specifically on the interaction between the example clients and the NeOn toolkit, such that changes in networked ontologies can be propagated to the semantic metadata, and vice versa. This means that, for example, changes made to an ontology using GATE services can be propagated to the NeOn toolkit where other users can access them, and that changes made to ontologies by other users via the toolkit can be accessed by users of GATE services. The deliverable comprises two main parts. First, we describe the implementation of ontology change between GATE and the NeOn Toolkit, and second, we describe the Evolva plugin which enables ontological changes to be captured and propagated to the toolkit from folksonomy data.