Initiatives, such as INSPIRE and the U.S. DHS Geospatial Data Model, working to develop a set of standards that will create harmonized models and themes for the spatial information infrastructure. leading expert in the development of SII provides a full picture of SII, including user and application needs, theoretical and technological foundation, and examples of realized working SII? s. It offers practical solutions to technical and non technical barriers, this book provides the tools necessary to take the next step towards the semantic web work that will revolutionize the world of how to access and utilize spatial information.?