Georgios Meditskos (CERTH), Zoe Vasileiou (CERTH),Panagiotis Mhtzias (CERTH), Anastasios Karakostas (CERTH), Stefanos Vrochidis (CERTH), Jesús Gorroñogoitia (ATOS

The present deliverable reports on the work carried out within T3.1 “Application Semantic Modelling” and T3.2 “Infrastructure Semantic Modelling”, relevant to the development of the SODALITE ontologies (abstraction layer) and the representation and mapping of cloud applications and infrastructures to ontological entities.

In addition,it describes the first version of the Semantic Reasoner module that populates the SODALITE Knowledge Base (KB) with the resource models and Abstract Application Deployment Models (AADMs) composed through the     textual editor (ApplicationDeveloperIDE).It also provides the REST API that different modules use to get information from the KB.