High Quality Content by WIKIPEDIA articles! SMW+ is an open source software bundle composed of the wiki application MediaWiki along with a number of its extensions. It is produced by the German software company Ontoprise GmbH. SMW+`s extensions include, most notably, Semantic MediaWiki and the Halo Extension. Cumulatively, SMW+ functions as a semantic wiki, and is also meant to serve as an enterprise wiki for use within companies, for applications such as knowledge management and project management. It is claimed to be especially helpful for cataloguing risks informally identified in the early stages of a project and later quantified using export facilities, e.g. to Microsoft Excel.