Extending the Desktop
Using ArcGIS for Desktop, GIS professionals create data, analytical models, and tools and then use web GIS to turn them into services. People who access these services can use web GIS to mash up these services with other data. The result is a custom map that helps users gain new insights into data.
Web GIS provides Desktop users with a wealth of maps, data, and services to supplement their own content and speed up projects. By adding available demographic and lifestyle data, Desktop users can add more context to their maps.