The morph suite of technologies (together with their corresponding algorithms), is focused on applying a range of query rewriting techniques over heterogeneous federated data sources, through the use of mappings expressed in the W3C R2RML language.

The suite is composed of the following languages:

• morph-RDB, for accessing relational databases. Currently it provides support for relational database management systems such as mySQL, Postgres and MonetDB.
• morph-LDP, an extension of morph-RDB that works with our Linked Data Platform implementation [2].
• morph-GFT, for accessing Google Fusion Tables.
• morph-streams, for accessing data streams available in Esper, GSN or SNEE, although extensible for other dynamic data sources that expose data through a REST API.
• SPARQL-DQP, for accessing federated SPARQL endpoints.
• kyrie, for enriching SPARQL queries by considering ontology entailments.