Living Semantic Platform Willy Chen Julian Lambertz Softplant GmbH Softplant GmbH Agnes-Pockels-Bogen 1 Agnes-Pockels-Bogen 1 80992 München 80992 München willy.chen@softplant.de julian.lambertz@softplant.de ABSTRACT The Living Semantic Platform (LSP) is a web-based and collaborative development environment for lightweight ontologies based on OWL2 QL. Moreover, it includes an integrated OWL2 QL reasoner which allows for efficient query answering based on SPARQL queries. Categories and Subject Descriptors I.2.4 [ARTIFICIAL INTELLIGENCE]: Knowledge Representation Formalisms and Methods – semantic networks General Terms Management, Documentation, Design Keywords Collaborative ontology development, OWL2 QL, query answering, SPARQL The full paper is included in the ACM Proceedings of the Research and Innovation Track of the SEMANTICS2015 Conference (ACM 978-1-4503-3462-4/15/09, DOI: http://dx.doi.org/10.1145/2814864.2814893). 12