Web Map Server is an OGC specification that provides four protocols (GetCapabilities, GetMap, GetFeatureInfo and DescribeLayer) in support of the creation and display of registered and superimposed map-like views of information that come simultaneously from multiple sources that are both remote and heterogeneous.
- SLD — Style Layer Descriptor
- WCS — Web Coverage Service
- WMS 1.0 — dated 2000-04-19
- WMS 1.1 — dated 2001-06-21
- WMS 1.1.1 — dated 2001-12-07
- WMS 1.3.0 — dated 2004-02-18
- WMS Context Document
- WMS Post — dated 2002-08-24