- Web Map Service (WMS)
-- a standard protocol for serving georeferenced map images over the Internet
-- These images are generated by a map server using data from a GIS database.
-- These map images cannot edit or spatially analyzed by end-users.
- Web Feature Service (WFS)
-- a standard that provides an interface which allow requests for geographical features
across the web using platform-independent calls.
-- an open-source server written in Java - allows users to share and edit geospatial data.
Designed for interoperability, it publishes data from any major spatial data source using open standards.