Exported Content

Web Feature Service DWG


Daly, Martin (cadcorp (Computer Aided Development Corp.) Ltd.)

Group Description:

The WFS DWG provides a forum to

  1. Discuss requirements for the WFS and Filter specifications
  2. Develop Change Request Proposals for the WFS and Filter specs
  3. Provide a forum for the presentation, discussion, and evaluation of profiles of the WFS specification and
  4. Provide a forum for presentations on uses and implementations of the WFS and Filter specifications in the marketplace.

Web Map Service

The OpenGIS® Web Map Service Interface Standard (WMS) provides a simple HTTP interface for requesting geo-registered map images from one or more distributed geospatial databases. A WMS request defines the geographic layer(s) and area of interest to be processed. The response to the request is one or more geo-registered map images (returned as JPEG, PNG, etc) that can be displayed in a browser application. The interface also supports the ability to specify whether the returned images should be transparent so that layers from multiple servers can be combined or not.

NOTE: WMS 1.3 and ISO 1912...

Web Mapping Testbed, Phase 1

The Web Mapping Testbed Phase 1 (WMT-1) was OGC's first Interoperability Initiative, and it marks an important milestone in the history of geoprocessing. WMT-1 yielded interface prototypes vendors used to enable users to immediately overlay and operate on views of thematic map data from different online sources (subject to limitations of the data), regardless of which vendor's software was serving that data. These prototypes ultimately resulted in the OpenGIS Web Map Server Specification.

Web Mapping Testbed, Phase 2

The Web Mapping Testbed Phase 2 (WMT-2) expanded on work done in WMT-1. It resulted in more federal data coming on-line using WMT protocols and laid a foundation for OGC Pilot Projects that tested and demonstrated the new capabilities. WMT-2 resulted in improvements to GetFeatureInfo, GetMap, and GetCapabilities, the basic elements of the Web Map Server Interface Specification. It also resulted in a proposed service interface specification for accepting multi-dimensional query requests and responding with portrayals (symbolized graphics) of the results (with associated legends).

Web Processing Service

The OpenGIS® Web Processing Service (WPS) Interface Standard provides rules for standardizing how inputs and outputs (requests and responses) for geospatial processing services, such as polygon overlay. The standard also defines how a client can request the execution of a process, and how the output from the process is handled. It defines an interface that facilitates the publishing of geospatial processes and clients’ discovery of and binding to those processes. The data required by the WPS can be delivered across a network or they can be available at the server.

Web Processing Service (WPS) IE

This Interoperability Experiment (IE) will implement a number of prototype Web Processing services based on the interface described in the OGC Web Processing Service (WPS) Specification. The purpose of the IE will be to confirm that the specification will support the requirements of geospatially related calculations and modeling over the Internet, and to improve the specification if it does not support these requirements.