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Linked APIs

SALAD Workshop at ESWC 2013 on Services and Applications over Linked APIs and Data.

Cfp out for a ESWC 2012 workshop on Linked APIs for the Semantic Web 2012.

We've recorded some of the discussion at the workshop at http://typewith.me/p/LAPIS2012.

Linked Data Services

LInked Data Services (LIDS) denote the integration of data providing services and Linked Data. Linked Data Services can be used to open up data silos to the Web of Data. LIDS define interface conventions that are compatible to Linked Data principles and are defined by lightweight formal model that enables the automatic creation of LIDS interfaces and the automatic integration of links to LIDS in existing data sets.

A first draft of the LIDS vocabulary is online.

Code for service description parsing, interface construction, service wrapper, and automatic annotation is online.

Linked Open Services

Linked Open Services are defined by a LIDS-complementary set of LOS Principles, and are generally oriented towards extending from Linked Data-compatible retrieval (via HTTP GET) to the full 'uniform interface' of REST over HTTP.

Using these principles, LOS may be created by making wrappers for existing services, or by creation from scratch.

LOS exchange RDF both as output, as in LIDS, and output, partly in order to support composition. This is also based on SPARQL, as per the LOS Composition Principles.

Service Models

Service models may be attached to:

• Procedure-Oriented Service Model (POSM - also known as 'minimal service model' in WSMO-Lite and Open University tools)
• Resource-Oriented Service Model (ROSM)

Process Models

Linked Open Process Models depend on a common vocabulary for activities (stages in a process).

There are then a number of styles of process definition, as follows.

• Block-oriented explicit control flow, including:
  • Simple process model
• Graph-oriented explicit control flow
• Dataflow-oriented (implicit control flow)

Related Approaches

• iServe
• Sbodio (with Moulin/OWL-S and Iqbal/SAWSDL)
• ReLL
• DEIMOS

Related Tools

• Apache Clerezza
• Virtuoso Sponger
• TALIS Morph

Discussion Items

• Web Linking
• OpenGraph
• CORS

Mailing List

• http://groups.google.com/group/linkeddataandservices/ (or send email to linkeddataandservices+subscribe@googlegroups.com)