As a specialist in geomatics and cartography, Professor Pulsifer's research addresses questions related to the use of geographic information with a particular focus on supporting interoperability: the ability of (geographic) information systems to readily  share information and operations.  He prioritizes consideration of sharing across differences in world view, discipline, language, culture, and other types of diversity.  These research themes are highly relevant to his focus on community-based research and examination of the links between Western scientific and other forms of knowledge.  Peter's research background in mapping small city infrastructure led him to his focus on interoperability and community-based research.  Professor Pulsifer has led several national and international committees and working groups focused on data standards and sharing.