bookmark semanticSBML Allows users to set and modify annotations easily. semanticSBML is a comprehensive software combining model annotation, checking and building as well as merging. It helps the human modeller to detect syntactic and semantic conflicts. It was also developed to perform uncritical routine steps and to handle different naming conventions. Its graphical user interface (GUI) provides a simple and intuitive way to edit Systems Biology Ontology (SBO) terms and MIRIAM-compliant RDF annotations.