ArcGIS- Geoprocessing map service

Geoprocessing services are how you expose the powerful analytic capability of ArcGIS to the World Wide Web. Geoprocessing services contain geoprocessing tasks, and a task takes simple data captured in a web application, processes it, and returns meaningful and useful output in the form of features, maps, reports, and files.

• Selecting one or more geoprocessing tools that will become the tasks in your service. You can use one of the many system tools delivered with ArcGIS or create your own tools using ModelBuilder or Python scripting.
• Gathering the input data necessary to execute the tool. Typically, these datasets are layers in the ArcMap table of contents.
• Executing the tool to create a result in the Results window.
• Defining the symbology of the input and output datasets, if necessary.
• Sharing the result as a geoprocessing service. When you share a result, you use the Service Editor to define the input modes of the datasets along with other properties of the service and its tasks