Cross-domain data discovery and integration Web standards support science data PROV ontology supports alignment of observational data (models) Vocabularies, ontologies, standards for observations: developments from RDA, W3C, OGC and CODATA A common model for scientific observations and samples Pitfalls in alignment of observation models resolved using PROV as an upper ontology Vocabularies and vocabulary services for water data A standard for geospatial observations and measurements OWL-Time and enhancements OM-JSON - a JSON implementation of O&M O&M Specimen model – alignments with PROV, BCO Ontology alignment – is PROV-O good enough? Re-use of standard ontologies in a water quality vocabulary 
