MMI Semantic Web Services and Tools

MMI Semantic Web Services and Tools

With the proliferation of vocabularies specific to projects, data repositories, domains, and even individual scientists, finding and using data has become a manual and often labor-intensive task. To facilitate data discovery in the oceanographic realm, MMI has developed web services and tools, provided guides, and hosted mapping sessions and workshops to facilitate usage and discovery of vocabularies including easy to use tools to crosswalks from project vocabularies to more standard/recommended ones.

In addition, MMI has conceived and begun implementing a semantic framework, to let the Marine science community leverage this library of semantic work. MMI wrote up a description of the semantic framework, which includes both a general overview of the framework's operations, and details about user and software interactions.

To make the ontologies and the mappings available, the ontologies are stored in a data base, indexed and made available using web services. Each term in the ontologies is also made a first-class resource on the web, named with a Uniform Resource Identifier (URI) which can be used to dereference additional metadata about the resource.

The MMI Ontology Registry and Repository (MMI ORR) provides the following functionality:

link: http://mmisw.org/orr/

  • Registration and hosting of vocabularies and ontologies
  • Easy ingestion and registratrion of vocabularies in tabular form
  • Easy definition of terms mappings accross multiple vocabularies
  • Web dereferencing of vocabularies, terms, and mappings
  • Metadata management
  • Versioning
  • Fully-hosted and re-hosted modes of registration
  • Programmatic access via HTTP based APIs

Detail Documentation: MMI ORR User Manual

Status: Although various modules are now pretty stable, we still consider the system in alpha status. More status details here.

Other Web Services

Many of the previous demonstration web services at MMI have been deprecated. Information about deprecated MMI web services can be found here.