Harmony project researchers are closely affiliated with a number of other initiatives and projects where Harmony research results are developed and tested.

• CIDOC Conceptual Reference Model - The CIDOC CRM was developed by the ICOM/CIDOC Documentation Standards Group as an ontology for representing cultural heritage information.

• DAML - The DARPA Agent Markup Language. The goal of this effort is to develop a language and tools to facilitate the concept of the semantic web.

• Dublin Core Metadata Initiative - An international organization that has developed a well-known set of metadata elements with core resource discovery semantics.

• MPEG-7 - The Multimedia Content Description Interface: a Moving Pictures Experts Group (MPEG) standard to describe audio-visual content.

• MPEG-21 - An MPEG initiative whose goal is to provide an open framework which will enable the delivery and consumption of multimedia over a range of networks and devices.

• Open Archives Initiative - An effort to facilitate the federation of digital content repositories by establishing an underlying infrastructure and protocol for exposing metadata.

• RDF - The Resource Description Framework (RDF) integrates a variety of web-based metadata activities including sitemaps, content ratings, stream channel definitions, search engine data collection (web crawling), digital library collections, and distributed authoring, using XML as an interchange syntax.

• RSS - RDF Site Summary (RSS) is a lightweight multipurpose extensible metadata description and syndication format. RSS is an XML application, conforms to the W3C's RDF Specification and is extensible via XML-namespace and/or RDF based modularization

• Semantic Web Activity - a W3C Initiative to provide machine- processable data and technologies to enable the automation, integration and reuse of data across applications on the WWW