Discussion Papers

Documents that present technology issues being considered in the Working Groups of the Open Geospatial Consortium Technical Committee. Their purpose is to create discussion in the geospatial information industry on a specific topic. These papers do not represent the official position of the Open Geospatial Consortium nor of the OGC Technical Committee. Schemas for some of these documents can be at the Discussion Paper Schema Repository.

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Document Title (click to download) Version Document # Editor Date
OGC Sensor Observation Service 2.0 Hydrology Profile    14-004  GEOWOW Consortium 2014-04-15
This document an interoperable hydrology profile for OGC Sensor Observation Service (SOS) 2.0 implementations serving OGC WaterML 2.0. This development is based on previous activities and results (i.e. Hydrology Interoperability Experiments as well as the European FP7 project GEOWOW). It is guided by the need to overcome mostly semantic issues between different SOS instances serving hydrological data and the according clients. Therefore, this profile focuses on how to use the entities and requests of the standards and covers the necessary technical details.
OGC OpenSearch Extension for Correlated Search    13-068  Pedro Gonçalves 2014-02-24
This OGC discussion paper presents an OpenSearch query protocol extension for the execution of correlation queries between different Search Feeds. Services that support the OpenSearch Specification and Correlation extension defined in this document are called OpenSearch Correlation Services. With the proposed extensions it will be possible to execute distributed queries with correlation and search criteria defining the results aggregation.
OGC HY_Features: a Common Hydrologic Feature Model    11-039r3  Irina Dornblut, Rob Atkinson 2014-02-24
Common semantics support the reference of features to the concept they represent and the integration of data proceed using the semantic framework such mappings provide. However there is no standard conceptual model for hydrologic feature identification. Different models of hydrologic processes, and different scales of detail, lead to a variety of information models to describe these features, and to different and mostly incompatible sets of feature identifiers. This document describes requirements and a proposed design for a domain model of hydrologic features as a set of interrelated Application Schemas using the ISO 19109 General Feature Model,
OGC GeoXACML and XACML Policy Administration Web Service (PAWS)    13-099  Jan Herrmann, Andreas Matheus 2013-11-06
This specification defines the interfaces of the OGC (Geo)XACML Policy Administration Web Service (OGC (Geo)XACML PAWS or simply PAWS in the following) that supports the creation, modification, exchange, analysis, testing, transformation, encrypting and signing of XACML and GeoXACML encoded access control policies. This draft specification was prepared as a deliverable for the OGC Web Services, Phase 9 (OWS-9) initiative of the OGC Interoperability Program. This document presents the results of the work within add-on project of the OWS-9 Security and Services Interoperability (SSI) thread. Please note that currently the document only contains the definition of the mandatory operations i.e. the basic conformance class. The writing of the sections describing the optional operations is still a to do. These sections need to define the following operations: • AnalyzePolicyElement operation • OptimizePolicyElement operation • TransformPolicyElement operation • TestPolicyElement operation • EncryptPolicy operation • SignPolicy operation Suggested additions, changes, and comments on this report are welcome and encouraged. Such suggestions may be submitted by email message or by making suggested changes in an edited copy of this document.
OGC Geospatial eXensible Access Control Markup Language (GeoXACML) 3.0 Core    13-100  Andreas Matheus 2013-11-06
This standard defines the version 3.0 of a geospatial extension to the OASIS eXtensible Access Control Markup Language (XACML) Version 3.0 standard. It thereby enables the interoperable definition of access rights / constraints using the XACML 3.0 language, processing model and policy schema but extends the ability to phrase conditions on geographic characteristics of subjects, resources and objects. In that sense, a GeoXACML policy could restrict access to geospatial information, e.g. provided by OGC Web Services. However, a GeoXACML policy could also restrict access to non geospatial assets by stating restrictions for access based on the location of the user (or the mobile device used) trying to access the protected assets. Therefore, this standard applies to main stream IT. For enabling processing of access control decisions based on geometry, Geospatial eXensible Access Control Markup Language (GeoXACML) 3.0 Core inherits by normative reference ISO 19125 which defines a geometry model and functions on geometry instances which enrich the XACML 3.0 specification.
OGC Geospatial eXensible Access Control Markup Language (GeoXACML) 3.0 GML 3.2.1 Encoding Extension    13-101  Andreas Matheus 2013-11-06
This standard defines the version 3.0 of a valid GML 3.2.1 geometry encoding as defined in Geography Markup Language (GML) simple features profile (with Corrigendum) to be used with the GeoXACML 3.0 Core standard. The use of this encoding extension to GeoXACML 3.0 Core enables the direct use of GML 3.2.1 encoded geometries into a GeoXACML 3.0 Policy, an Authorization Decision Request or in an Authorization Decision’s Obligation element. It thereby improves the performance of deriving access control decisions, where geometries are involved as existing GML 3.2.1 geometry encodings must not be transformed to Well Known Text (WKT) as supported by GeoXACML 3.0 Core. Furthermore, the use of this encoding extension simplifies the implementation of a Policy Enforcement Point as it must not provide the transformation functions from GML to WKT and vice versa. This encoding extension has its normative base in Geography Markup Language (GML) simple features profile (with Corrigendum).
WaterML2.0 - part 2: Ratings, Gaugings and Sections Discussion Paper    13-021r3  Peter Taylor 2013-06-18
This document describes an information model for exchanging rating tables, or rating curves, that are used for the conversion of related hydrological phenomenon. It also describes a model describing the observations that are used to develop such relationships, often referred to as gauging observations. The information model is proposed as a second part of the WaterML2.0 suite of standards, building on part 1 that addresses the exchange of time series1.
OGC Web Feature Service (WFS) Temporality Extension    12-027r2  Timo Thomas 2013-06-18
This OGC Discussion Paper (DP) provides a proposal for a temporality extension for the WFS 2.0 and FES 2.0 standard. It is based on the work of and experiences made in several OWS test beds, in particular OWS-7 and OWS-8, Aviation threads and discussions at the 2011 OGC TC meeting in Brussels, Belgium. This DP partially replaces and advances the document “OWS-8 Aviation: Guidance for Retrieving AIXM 5.1 data via an OGC WFS 2.0” [4].
NetCDF Uncertainty Conventions
NetCDF-U
   11-163  Lorenzo Bigagli, StefanoNativi 2013-01-17
This Discussion Paperproposes a set of conventions for managing uncertainty information within the netCDF3 data model and format: the NetCDF Uncertainty Conventions (NetCDF-U).
OGC Standard for Moving Features; Requirements    12-117r1  Ryosuke Shibasaki 2012-12-06
Applications using moving feature data, typically on vehicles and pedestrians, have recently been rapidly increasing. Innovative applications are expected to require the overlay and integration of moving feature data from different sources to create more social and business values. Efforts in this direction should be encouraged by ensuring smoother data exchange because handling and integrating moving feature data will broaden the market for geo-spatial information. This discussion paper provides an overview of some actual and potential geo-spatial applications using moving feature data and the existing international standards or specifications on moving feature data handling. It also summarizes the requirements set on the standards for moving feature data, and finally proposes the development of a new OGC standard for moving features.
WaterML 2.0 - Timeseries - NetCDF Discussion Paper    12-031r2  Doug Palmer 2012-07-12
This discussion paper investigates the possible uses of NetCDF as a representation of WaterML timeseries data. The work is largely based on the WaterML 2.0 standard for timeseries, the NetCDF core and extensions standards and the CF-NetCDF and ADCC conventions.
Guidance and Profile of GML for use with Aviation Data    12-028  OGC Aviation Domain Working Group 2012-05-15
The ISO 19107 spatial schema, which is implemented by GML, is very complex. ISO 19107 defines an extensive list of geometries, geometric properties and operations – many of which are not necessary for aeronautical information applications. In addition, the ISO 19107 contains an exhaustive 3D geometry model that is probably not needed in its entirety for AIXM either. Therefore, a GML profile for AIXM needs to be defined. The objective of this document is to identify the elements of the AIXM-GML profile and also to provide guidelines for the use of GML constructs in AIXM data sets.
Web Processing Service Best Practices Discussion Paper
wps1.0-best-practice
   12-029  Bastian Schäffer 2012-04-04
The following document contains best practices for identifying input data formats for the OGC WPS 1.0.0. It was created due to a lack of interoperability between different WPS implementation based on non-standardized input identifiers.
WS-Agreement Application Profile for OGC Web Services    11-094  Bastian Baranski 2011-11-24
This document specifies a) XML schemas for providing functional and non-functional service descriptions of OGC Web Services (OWS), b) an URN namespace for identifying exposed and measurable service properties of OWS and c) a DSL for defining and evaluating service level guarantees.
OGC®Event Service - Review and Current State    11-088r1  Johannes Echterhoff, Thomas Everding 2011-11-23
This Discussion Paper provides information on what has so far been called “Event Service” at OGC. The presented work is supported by the European Commission through the ESS project (integrated project, contract number 217951) and the GENESIS project (integrated project, contract number 223996) .
*FL Starfish Fungus Language for Sensor Description    11-058r1  Ingo Simonis, Chrsitian Malewski 2011-07-08
The Starfish Fungus Language was developed in response to the high number of complaints addressing issues with the OGC standard Sensor Model Language, SensorML. Most complaints circled around the high flexibility of the language in combination with unnecessary abstractions of technical terms, e.g. every sensor is not a sensor but a process. Most beginners struggled with the composite pattern of those processes, as there is no well-defined rule what needs to be described where. As a beginner, it is almost impossible to write a simple sensor description without getting major guidance through the SensorML development team or other experts.
License-Based Access Control    11-018  Rüdiger Gartmann, Bastian Schäffer 2011-03-30
This Discussion Paper proposes model for license-based access control to SOAP services, based on OASIS SAML 2.0. This approach is a potential solution for license-based access control, which requires the possession of a valid license for getting access to a service. Use of digital licenses allow users to act on or with web services to which they are associated This document re-uses content produced by the OGC GeoRM Common 1.0 Standards Working Group and combined that with the document OGC 10-125, which was posted to an internal OGC document archive (Pending Documents) but is not publicly available. This document does not claim compliance to the GeoDRM reference model (ISO 19153), although the authors are not yet aware of any conflicts to it.
Requirements for Aviation Metadata    10-195  OGC Aviation Domain Working Group 2011-03-28
This OGC Discussion Paper details the user requirements for metadata in the aviation domain. The requirements are at a high-level.
Guidance on the Aviation Metadata Profile    10-196r1  OGC Aviation Domain Working Group 2011-03-28
This paper explains how to map the Requirements for Aviation Metadata into a metadata profile.
Requirements and Space-Event Modeling for Indoor Navigation    10-191r1  Claus Nagel, Thomas Becker, Robert Kaden, Ki-Joune Li, Jiyeong Lee, Thomas H. Kolbe 2010-12-11
This OpenGIS® Discussion Paper presents a Multilayered Space-Event Model for indoor navigation which simultaneously addresses route planning, multiple localization methods, navigation contexts, and different locomotion types. The paper contains the corresponding data models as well as their encoding in GML 3.1.1.
Sensor Observable Registry (SOR) Discussion Paper    09-112r1  Simon Jirka, Arne Bröring, Daniel Nüst 2010-10-12
This Discussion paper introduces the Sensor Observable Registry (SOR), a web service interface for managing the definitions of phenomena measured by sensors as well as exploring semantic relationships between these phenomena.
Sensor Instance Registry Discussion Paper    10-171  Simon Jirka, Daniel Nüst 2010-10-12
This Discussion paper introduces the Sensor Instance Registry (SIR), a web service interface for managing the metadata and status information of sensors. Furthermore this service is capable of automatically harvesting sensor metadata, transforming the collected metadata sets into a data model compatible to OGC Catalogs and to push harvested metadata into OGC Catalog instances.
Sensor Interface Descriptors    10-134  Arne Broering, Stefan Below 2010-06-30
This document presents the Sensor Interface Descriptor (SID) schema that enables the declarative description of sensor interfaces, including the definition of the communication protocol, sensor commands, processing steps and metadata association. This schema is designed as a profile and extension of SensorML. Based on this schema, SID interpreters can be implemented, independently of particular sensor technology, which are able to translate between sensor protocol and SWE protocols. They establish the connection to a sensor and are able to communicate with it by using the sensor protocol definition of the SID. SID instances for particular sensor types can be reused in different scenarios and can be shared among user communities. The ability of an SID interpreter to connect sensors and Sensor Web services in an ad hoc manner based on the sensor’s SID instance is a next step towards realizing sensor plug & play within the Sensor Web.
Harmonising Standards for Water Observation Data - Discussion Paper    09-124r2  Peter Taylor 2010-06-30
This document investigates the potential for harmonisation of water data standards, with the goal of developing an OGC compliant standard for the exchange of water observation data. The work will be based on OGC‘s Observations and Measurements abstract model [10-004r2] . The goal is to create an O&M profile for the water domain. Development of the OGC compliant O&M profile will begin by examining the content and structure of existing standards and suggesting future methodology for developing a harmonised model for observation data. This approach will make use of existing standards where possible. The focus of this document is in-situ style observations (which are generally related to water quantity). Ex-situ measurements, such as those common to measuring water quality, will be addressed in future work. 2 Normative
sensorML Extension Package for ebRIM Application Profile  0.3.0  09-163r2  Frédéric Houbie, Fabian Skivée, Simon Jirka 2010-04-02
This document describes the mapping of description of sensors using SensorML specification 1.0 [OGC 07-000] to an ebRIM structure within an OGCTM Catalogue 2.0.2 (Corrigendum 2 Release) [OGC 07-006r1] implementing the CSW-ebRIM Registry Service – part 1: ebRIM profile of CSW [OGC 07-110r4]. In addition this document contains the definition of a SensorML profile for Discovery which defines a minimum set of metadata to be provided within SensorML documents as well as the structure this data shall possess. This profile is based on the OGC OWS- 6 SensorML Profile for Discovery Engineering Report [OGC 09-033]. It defines the way sensors metadata are organized and implemented in the Catalogue for discovery, retrieval and management.
SANY Fusion and Modelling Architecture  1.2  10-001  Stuart E. Middleton 2010-03-22
This document reports the considered SANY best practice for using OGC standards to provide generic fusion processing services. Concrete case studies are documented and a detailed appendix is provided with example of XML request and responses.
Web View Service Discussion Paper  0.3.0  09-166r2  Benjamin Hagedorn 2010-02-01
The Web View Service (WVS) is an extendable, interactive, image-based portrayal service for complex three-dimensional geodata such as 3D landscape and city models. 3D geodata is delivered as finally rendered images. Besides color images, relevant thematic and geometrical information such as object identity information or depth data is provided. Additionally, the WVS supports interaction with the portrayed 3D environment, e.g., information retrieval, spatial analysis, and 3D navigation.
Draft for Candidate OpenGIS® Web 3D Service Interface Standard  0.4.0  09-104r1  Arne Schilling, Thomas H. Kolbe 2010-01-20
A Web 3D Service (W3DS) is a portrayal service for three-dimensional geodata, such as landscape models, city models, textured building models, vegetation objects, and street furniture. Geodata is delivered as scenes that are comprised of display elements, optimized for efficient real time rendering at high frame rates.
OpenSearch Geospatial Extensions Draft Implementation Standard  0.0.1  09-084r1  Jo Walsh, Pedro Gonçalves, Andrew Turner 2009-10-13
The OpenSearch specification originates in a community effort built around Amazon's A9.com. It was intended to allow syndication of search results that could then be aggregated by one large index. The OpenSearch specification is made available under the Creative Commons Attribution-Sharealike 2.5 license. In addition, the OASIS Search Web Services group is publishing an Abstract Protocol Definition of the interface or “binding”, which coincides with the community specification published at http://opensearch.org. In 2007, Andrew Turner proposed a set of geospatial extensions through OpenSearch.org.
Sensor Observable Registry Discussion Paper  0.3.0  09-112  Simon Jirka, Arne Bröring 2009-10-13
This Discussion paper introduces the Sensor Observable Registry (SOR), a web service interface for managing the definitions of phenomena measured by sensors as well as exploring semantic relationships between these phenomena.
Grid coverage Coordinate Reference Systems (CRSs)  0.3.2  09-085r2  Arliss Whiteside 2009-10-13
This document summarizes the types of Coordinate Reference Systems (CRSs) that are recommended for use with grid (including image) coverages. This document specializes Best Practice Paper OGC 09-076r3 “Uses and Summary of Topic 2: Spatial referencing by coordinates” for grid coverages. Topic 2 is almost the same as ISO 19111:2007, but includes some corrections. This document includes some best practices for defining and using ImageCRSs and other CRSs for grid coverages.
CF-netCDF Encoding Specification  0.1.0  09-122  Ben Domenico 2009-10-13
NetCDF (network Common Data Form) is a data model for array-oriented scientific data, a freely distributed collection of access libraries implementing support for that data model, and a machine-independent format. Together, the interfaces, libraries, and format support the creation, access, and sharing of scientific data.
GeoRM Role Model  0.3.0  09-123  Roland M. Wagner 2009-10-13
The scope of this document is the update and the definition of GeoRM roles as a sub model of the GDI.NRW reference model (process model and architecture model). Key relationships are defined between these roles.
3D-Symbology Encoding Discussion Draft  0.0.1  09-042  Steffen Neubauer, Alexander Zipf 2009-10-13
This document present an extension of the Symbology Encoding (SE) /Styled Layer Descriptor (SLD) specifications into 3D as a separate profile.
Specification of the Sensor Service Architecture (SensorSA)  3 (Rev 3.1)  09-132r1  Thomas Usländer (Ed.) 2009-10-02
Specification of a generic service-oriented architecture integrating the access to, the management and the processing of sensor-related information based upon the emerging standards of the Open geospatial Consortium (OGC), and resulting from the requirements analysis of diverse application domains such as maritime risk management, observation of geo-hazards and monitoring of air quality.
Uses and summary of Topic 2: Spatial referencing by coordinates  0.3.0  09-076r3  Arliss Whiteside 2009-09-14
This document first discusses the uses for data sharing, and then provides a brief summary, of OGC Abstract Specification Topic 2: Spatial referencing by coordinates. Topic 2 is almost the same as ISO 19111:2007, but includes some corrections. This document includes some best practices for using Coordinate Reference Systems (CRSs).
OGC® Catalogue Services - OWL Application Profile of CSW
CAT OWL App4CSW
 0.3.0  09-010  Kristin Stock 2009-07-27
This document describes an Application Profile for the Web Ontology Language (OWL) [W3C OWL] for CSW. It is intended to define a specification for how ontologies built using RDF and OWL may be included within an OGC CSW catalogue to semantically-enable the catalogue.
Sensor Web Enablement Application for Debris Flow Monitoring System in Taiwan  0.3.0  09-082  Hsu-Chun James Yu, Zhong-Hung Lee, Cai-Fang Ye, Lan-Kun Chung, Yao-Min Fang 2009-07-27
This application document describes: 1) What is a Debris Flow Monitoring System. 2) How SWE implements in Debris Flow Monitoring System. 3) Tutorial for SWE developers.
Web Coverage Service (WCS) 1.1 extension for CF-netCDF 3.0 encoding
WCS CFnetCDF
 0.2.2  09-018  Ben Domenico, Stefano Nativi 2009-04-08
This extension of the WCS standard specifies an Information Community data model with the related encoding that may optionally be implemented by WCS servers. This extension specification allows clients to evaluate, request and use data encoded in CF-netCDF3 format from a WCS server. This document is an extension of the Web Coverage Service (WCS) 1.1 Corrigendum 2 (version 1.1.2) Implementation Standard [OGC 07-067r5]. With small changes, this extension is expected to also apply to WCS 1.2.
Uncertainty Markup Language (UnCertML)  0.6  08-122r2  Matthew Williams, Dan Cornford, Lucy Bastin & Edzer Pebesma 2009-04-08
The Uncertainty Markup Language (UncertML) is an XML encoding for the transport and storage of information about uncertain quantities, with emphasis on quantitative representations based on probability theory.
Event Pattern Markup Language (EML)  0.3.0  08-132  Thomas Everding, Johannes Echterhoff 2008-11-05
The Event Pattern Markup Language (EML) allows one to describe event patterns for event (stream) processing and analysis. It can be used to build multi stage filters for incoming events but also to derive higher information through combining and correlating multiple events. It can be applied on single events but is focused on handling of continuous event streams.
OpenGIS® Sensor Event Service Interface Specification  0.3.0  08-133  Johannes Echterhoff, Thomas Everding 2008-10-10
The Sensor Event Service (SES) provides operations to register sensors at the service application and let clients subscribe for observations available at the service. The service performs filtering of sensor data (streams) based upon the filter criteria defined in these subscriptions. Filters can be applied on single observations but also on observation streams, potentially aggregating observations into higher-level information (which itself can be regarded as observation data). Whenever matches are discovered, a notification is sent to the subscriber, using asynchronous, push-based communication mechanisms.
OWS-5 KML Engineering Report  0.1.0  07-124r2  Chris Holmes 2008-09-12
This Discussion Paper is about the use of KML, an encoding used to express geographic annotation and visualization on existing or future web-based online maps (2d) and earth browsers (3d). KML uses a tag-based structure with nested elements and attributes and is based on the XML standard.
OWS-5 WCS JPIP Coverage Subsetting Engineering Report  0.9.0  07-169  Steven Keens 2008-09-12
This OGC document represents an OWS-5 SWE thread Engineering Report on sub-setting georeferencable imagery. It discusses how to handle georeferencable imagery in the JPEG2000 format as well as using JPIP within the WCS-T and the SWE set of services.
Summary of the OGC Web Services, Phase 5 (OWS-5) Interoperability Testbed  1.0  08-073r2  Jessica Cook, Raj Singh 2008-09-12
The OGC Web Services, Phase 5 (OWS-5) Testbed was an initiative of the OGC Interoperability Program (IP). The primary focus of an IP activity is to collaboratively extend and demonstrate OGC‘s baseline for geospatial interoperability.
OWS5: OGC Web feature service, core and extensions  0.9.0  08-079  John Herring 2008-09-12
This standard specifies the behavior of a service that provides transactions on and access to geographic features in a manner independent of the underlying data store. It specifies discovery operations, query operations and transaction operations. Discovery operations allow the service to be interrogated to determine its capabilities and to retrieve the application schema that defines the feature types that the service offers. Retrieval operations allow features to be retrieved from the opaque underlying data store based upon constraints on spatial and non-spatial feature properties defined by the client. Transaction operations allow features to be created, changed and deleted from the opaque underlying data store.
OWS-5 GeoProcessing Workflow Architecture Engineering Report  0.1.0  07-138r1  Michael Werling 2008-09-12
This OGC® document describes the Workflow Architecture developed in support of Geoprocessing Workflow and Sensor Web Enablement threads of OWS-5. This information includes the overall architecture description, concepts, and issues. It also provides detail on the Conflation Workflow created as an example implementation for geoprocessing in a workflow. This document establishes a sample architecture and associated lessons learned as general guidance.
OWS 5 Engineering Report: Supporting Georeferenceable Imagery  0.1.0  08-071  Mike Botts 2008-09-12
The scope of this document is to capture considerations and recommendations on approaches for supporting georeferenceable imagery within the OGC encodings and web services. Georeferenceable imagery is typically imagery coming from a remote sensor that has not been previously geo-rectified, resampled, or regridded. Georeferenceable imagery must be accompanied with information sufficient to allow georectification of the imagery.
OWS-5 GeoRM License Broker Discussion Paper  0.9  08-076  Rüdiger Gartmann 2008-09-12
This document describes a License Broker Service (LB-Service) as specified and implemented in the OWS-5 test bed. The LB-Service provides configurable license models, which may contain configuration parameters to be defined by the licensee. The setting of these parameters affects the actual license to be created by the LB-Service.
OWS-5 Conflation Engineering Report  0.1.0  07-160r1  Pete Brennen 2008-09-12
This OGC Engineering Report describes the process of conflation, outlines a framework for conflation and conflation rules services within a service oriented architecture, and describes the implementation of conflation services during the OGC OWS-5 testbed.
OWS-5 Earth Observation Web Processing Services (WPS) Engineering Report  0.1.0  08-058r1  Stefan Falke 2008-09-12
This document serves to describe the use of web processing services and the OGC Web Processing Service (WPS) in earth observation (EO) applications. It provides an overview of web processing services and a description of developments related to earth observation implementations of OGC WPS in the OGC OWS-5 testbed.
GML 3.2 implementation of XML schemas in 07-000
SensorML CR
 1.0.1  08-127  Simon Cox 2008-08-25
OWS-5 Considerations for the WCTS Extension of WPS  0.1.0  08-054r1  Max Martinez 2008-08-20
This document details considerations for using the WPS specification to define a standard coordinate transformation service.
OWS-5 CITE Summary Engineering Report  0.1.0  08-084r1  Jen Marcus 2008-08-20
This document summarizes work completed in the OWS5 Compliance & Interoperability Test & Evaluation thread. This document is applicable to the OGC Compliance Test Program.
OGC OWS-5 Engineering Report on WCPS  0.9.0  07-166r2  Peter Baumann 2008-08-04
This document represents the Engineering Report for the WCPS activity within the OWS-5 SWE thread. It summarizes tasks and outcomes.
OGC® OWS-5 ER: GSIP Schema Processing  0.0.3  08-078r1  Clemens Portele 2008-07-08
This OGC® document describes and discusses the OWS-5 enhancements in the process of creating application schemas in support of the NSG from NGA data based on the GEOINT Structure Implementation Profile (GSIP) which has been based on the NSG Application Schema and accompanying NSG Entity Catalog.
OGC® OWS-5 Engineering Report: Local MSD Implementation Profile (GML 3.2.1)
GML Local MSD
 0.0.2  08-077  Clemens Portele 2008-07-02
This document contains a data content specification for Local Mission Specific Data (MSD) and is based on the GEOINT Structure Implementation Profile (GSIP) developed by the NGA. This document defines the GML 3.2.1 (ISO 19136) encoding requirements for Local MSD. The structure of the document is based on ISO 19131 (Geographic Information – Data Product Specification).
Feature Type Catalogue Extension Package for ebRIM (ISO/TS 15000-3) Profile of CSW 2.0
CAT2 AP ebRIM FTC
 0.1  07-172r1  Kristin Stock 2008-05-13
This document describes a Feature Type Catalogue extension package for the OGC® ebRIM (ISO/TS 15000-3) Profile of CSW 2.0 [OGC 05-025r3]. It defines the way an ISO 19110 [ISO 19110:2005] Feature Type Catalogue is included within a Registry, and provides an information model and stored queries for such an inclusion.
OWS-5 Data View Architecture Engineering Report  0.0.0  07-163  David Rosinger, Stan Tillman 2008-05-02
This OGC document presents a summary of the Data View Architecture experiment conducted as part of the Geo-Processing Workflow (GPW) thread in the OWS-5 test bed. The main activities in this experiment were the storage of Data Views in an ebRIM Catalog and the discovery and use of those Data Views by an Integrated Client.
OGC® Loosely Coupled Synchronization of Geographic Databases in the Canadian Geospatial Data Infrastructure Pilot  0.0.9  08-001  Raj Singh 2008-04-29
This Discussion Paper documents results from the Interoperability Program CGDI Pilot and describes a suite of services that enable the sharing of geographic information across organizations for the purposes of: geographic database synchronization in support of a spatial data infrastructure; geographic database modification suggestions from trusted and un-trusted sources; and the transmission of geographic information in emergency notification events. These services are called the Update Feed Service; Feedback Feed Service; and Emergency Alert Service respectively. Their information encodings are all based on the Atom Syndication Format, extended with GML and WFS Filter encodings to support geospatial requirements, and were implemented in the Canadian Geospatial Data Infrastructure Pilot.
OGC® Canadian Geospatial Data Infrastructure WFS and GML Best Practices  0.0.9  08-002  Peter Rushforth 2008-04-29
This document gives guidelines and recommendations for administrators, users and implementers of Web Feature Services serving Geography Markup Language encoded response documents.
OGC® Canadian Geospatial Data Infrastructure Summary Report  0.0.9  08-000  Raj SIngh 2008-04-29
This report summarizes the work performed under the Canadian Geospatial Data Infrastructure Pilot. The purpose of this pilot was to test the utility of certain OGC standards, in particular the Geography Markup Language (GML) and Web Feature Service (WFS), in the implementation of a spatial data infrastructure. OGC documents 08-001 and 08-002 are more technical companions to this document.
OWS 5 SOAP/WSDL Common Engineering Report  0.1.0  08-009r1  Bastian Schaeffer 2008-02-21
This OGC document reports the results achieved in the OWS5 GPW-SOAP/WSDL thread which is focused on creating general recommendations and guidelines for WSDL/SOAP support to existing OGC Web Services.
FedEO Pilot Engineering Report  0.4  07-152  Corentin Guillo 2008-01-21
This document was developed during the FedEO - GEO AIP initiative of the OGC. It was contributed by the organizations involved in the Earth Observation and Natural Resources and Environment Domain Working Group (EO/NRE DWG) in the OGC Specification Program. The document describes recommendation for architecture and specification that enables interoperability
Wrapping OGC HTTP-GET/POST Services with SOAP  0.1  07-158  R 2008-01-02
Discussion of how to wrap OGC HTTP-GET/POST Services with SOAP
OGC Web Services Summaries  0.3.0  07-095r2  Arliss Whiteside 2007-11-14
This document provides brief and consistent summaries of several OGC Web Service interface specifications that serve data.
Web Coordinate Transformation Service  0.4.0  07-055r1  Arliss Whiteside, Markus U. M 2007-10-09
This Discussion Paper describes an interface specification for a web coordinate transformation service that now builds on version 1.1 of the OWS Common Specification [OGC 06-121r3]. All versions of this document specify an
Compliance Test Engine Interoperability Program Report  1.0  07-012  Jennifer Marcus, Chuck Morris 2007-09-04
As a work item in the OWS4/Conformance and Interoperability Test and Evaluation (CITE) project, Northrop Grumman Information Technology (NGIT) provided an open source web services compliance engine. NGIT refers to this engine as the Test Evaluation And Measurement (TEAM) Engine. It executes scripts written in Compliance Test Language (CTL), a grammar also developed by NGIT. This IPR describes TEAM Engine in detail and provides information on how it was used in OWS-4/CITE.
GeoDRM Engineering Viewpoint and supporting Architecture  0.9.2  06-184r2  Christian Elfers, Roland M. Wagner 2007-08-14
This GeoDRM engineering viewpoint document describes use cases and concepts for GeoDRM, as well as references to distributed computing concepts which are not GeoDRM sensu stricto but are required for any GeoDRM implementation.
OWS 4 WFS Temporal Investigation  0.1.0  06-154  David S. Burggraf, Ron Lake, Darko Androsevic 2007-08-14
The objective of the proposed temporal extensions to the WFS is to enable temporal/geospatial queries using the GML temporal types against GML dynamic features employing either the snapshot or time history model (time slices).
OGC Web Services Architectural Profile for the NSG  1.3  07-009r3  Shayne Urbanowski 2007-08-13
The purpose of this document is to generally describe how the various OGC specifications may be used to address the needs of a large enterprise system. It highlights the key elements of the OWS-4 effort as they relate to web service architecture implementation at NGA and in the NSG. The goal is that this document will enable organization that interface with the NSG to understand how to produce and consume data and services in an interoperable environment.
The Specification Model -- Structuring an OGC specification to encourage implementation  0.0.9  07-056r1  John Herring, OAB, Architecture WG 2007-07-23
This standard specifies some desirable characteristics of a standards specification that will encourage implementations by minimizing difficulty and optimizing usability and interoperability.
Feature Styling IPR  0.4.1  06-140  Dr. Markus M 2007-06-08
Feature Styling is based on a distributed computational platform that employs a number of standard interfaces and encodings to allow for flexible, scalable and interoperable management of symbology (styles and symbols) in the process of producing maps from different kinds of data, most important being source GML data.
OWS4 - Topology Quality Assessment Interoperability Program Report  0.3.0  07-007r1  Paul Watson 2007-06-06
This document describes the purpose and function of the Topology Quality Assessment Service developed and deployed within the Geo-processing workflow thread of the OWS4 interoperability testbed.
OWS-4 CSW ebRIM Modelling Guidelines IPR  0.0.6  06-155  Tim Wilson, Renato Primavera, Panagiotis (Peter) A. Vretanos 2007-06-06
The OWS-4 CSW ebRIM Modelling Guidelines Interoperability Program Report (IPR) provides guidance for creating a standard methodology for mapping geospatial domain information models to ebRIM [www.oasis-open.org/committees/regrep/documents/2.0/specs/ebrim.pdf]. It also presents the results of mapping specific Sensor Web Enablement (SWE) [http://www.opengeospatial.org/ogc/markets-technologies/swe] and Feature Catalog domain models to ebRIM for use with OpenGIS Catalog Service Standard [http://www.opengeospatial.org/standards/cat] implementations in the OWS-4 Initiative [http://www.opengeospatial.org/projects/initiatives/ows-4].
OGC Cataloguing of ISO Metadata (CIM) using the ebRIM profile of CS-W
Cat CIM using ebRIM
 0.1.7  07-038  Nicolas Lesage, Marie-Lise Vautier 2007-06-06
This document extends the ebRIM application profile of CS-W for the cataloguing of ISO 19115 and ISO 19119 compliant metadata.
Frame image geopositioning metadata GML 3.2 application schema  0.0.0  07-032  Arliss Whiteside 2007-06-06
This document specifies a GML 3.2 Application Schema for frame image geopositioning metadata, for XML encoding of the georeferencing coordinate transformation parameters of an unrectified frame image. A frame image is one whose entire two-dimensional extent was collected at one time. A georeferencing coordinate transformation can transform position coordinates between a specific ground-based (or object) Coordinate Reference System (CRS) and the image CRS.
Discussions, findings, and use of WPS in OWS-4  0.9.1  06-182r1  Steven Keens 2007-06-06
This document reviews the material discussed during the OWS-4 project, describes the WPS processes deployed in the workflows, and offers suggestions to the OGC to move forward with the WPS.
CUAHSI WaterML  0.3.0  07-041r1  Ilya Zaslavsky, David Valentine, Tim Whiteaker 2007-05-30
This document describes the initial version of the WaterML messaging schema as implemented in version 1 of WaterOneFlow web services. It also lays out strategies for harmonizing WaterML with OGC specifications, the Observations and Measurement specification in particular.
Local MSD Implementation Profile (GML 3.2.1)  0.7.0  07-027r1  Clemens Portele 2007-05-25
This document contains a data content specification for Local Mission Specific Data (MSD) and is based on the GEOINT Structure Implementation Profile (GSIP) developed by the NGA. This document defines the GML 3.2.1 (ISO 19136) encoding requirements for Local MSD. The structure of the document is based on ISO/DIS 19131 (Geographic Information
OGC Web Services Architecture for CAD GIS and BIM  0.9  07-023r2  Paul Cote 2007-05-16
This document lists the design principles and requirements for future versions of a potential architecture for integrating workflows and information models from Computer Aided Design and Building Information Modelling with the principles of the OGC Web Services Architecture.
OWS-4 Workflow IPR  0.0.9  06-187r1  Steven Keens 2007-05-07
This document examines five workflows discussed during the course of the OWS-4 project.
Trusted Geo Services IPR  0.9.0  06-107r1  Cristian Opincaru 2007-05-07
The OGC Trusted Geo Services Interoperability Program Report (IPR) provides guidance for the exchange of trusted messages between OGC Web Services and clients for these services. It describes a trust model based on the exchange and brokering of security tokens, as proposed by the OASIS WS-Trust specification [http://docs.oasis-open.org/ws-sx/ws-trust/200512].
GeoDDS Mass Market (formerly GeoRSS) Interoperability Program Report  0.0.1  07-004  Panagiotis (Peter) A. Vretanos 2007-05-07
This OpenGIS(r) document describes the API for two web services capable of generating several simplified data formats including GeoRSS and the Basic XML Feature Schema (BXFS).
Requirements for some specific simple solid, plane and line geometry types  0.5.0  07-001r3  Simon Cox 2007-05-02
This specification describes requirements for specific geometry types, including some simple solids, and planes and lines defined using an implicit parameterization.
OWS Integrated Client (GeoDSS Client)  0.0.3  05-116  Stan Tillman, Jody Garnett 2007-03-08
This Interoperability Program Report (IPR) provides an overview of the general requirements, architecture, and design considerations of
Geographic information - Rights expression language for geographic information - Part xx: GeoREL  0.9.0  06-173r2  John Herring 2007-01-25
This document extends the rights expression language (REL) to encompass the concerns of holders of geographic data and service resources to equally ensure their protection. This allows the geographic information market to operate with minimal constraints derived from need for the protection of intellectual property.
Geospatial Semantic Web Interoperabiltiy Experiment Report  0.5.0  06-002r1  Joshua Lieberman 2006-08-21
The Semantic Web seeks to make the meaning as accessible as the material, by enabling connections - which are both logical and (machine) actionable - between concepts which a user presently understands and those which may be new and foreign. The Geospatial Semantic Web extends this capability to both content and concepts that are specifically spatial, temporal, and geographic in nature, giving both people and machines true access to a wider range of knowledge.
WMS - Proposed Animation Service Extension  0.9  06-045r1  Eric LaMar 2006-07-27
This document explains how the Web Map Server (WMS 1.0 [1] & 1.1 [2,3]) specification can be extended to allow map animations that move in space over time. It should be read in conjunction with the latest version WMS specification.
EO Application Profile for CSW 2.0
CAT2 AP EO
 1.4  06-079r1  Marc Gilles 2006-06-06
Explains how Catalogue Services based on the HMA (Heterogeneous Earth Observation Missions Accessibility) Application Profile for the OGC Catalogue Services Specification v2.0.1 [OGC 04-021r3] are organized and implemented for the discovery, retrieval and management of Earth Observation products metadata.
OWS3 GML Topology Investigation  0.0.5  05-102r1  David Burggraf, Stan Tillman 2006-05-09
Part 1 of this investigation is conducted by Galdos Systems. In this part, the OWS3 MSD3 geometric description is extended to include a topology encoding as defined by the MSD3 schema. Part 2 (Clause 6.2) of this investigation is conducted by Intergraph Corp. and describes and discusses the impacts of encoding topology within the GML data.
Access Control & Terms of Use (ToU) "Click-through" IPR Management  1.0.0  05-111r2  Roland M. Wagner 2006-05-09
This document demonstrats a number of functional capabilities related to rights management (Terms-of-Use, Authentication, content services) that need to be described and chained.
Catalog 2.0 Accessibility for OWS3  0.0.1  05-084  Vincent Delfosse 2006-05-09
The OGC Catalog-Web Profile is a complex specification that implies usage of many concepts, such as ressources, metadata, registry, registry information model, harvesting, etc. This document is a user-friendly introduction to these concepts. It will help the understanding of the Catalog specification in general and of the Catalog Web profile with ebRIM in particular.
Schema Maintenance and Tailoring  0.0.7  05-117  Clemens Portele 2006-05-02
Description of the schema tailoring process for the application schema development in the decision support services thread (GeoDSS) during the OWS-3 initiative
GML Performance Investigations by CubeWerx  1.0.0  05-050  Craig Bruce 2006-05-02
This report proposes and executes methods to evaluate the performance of the use of the Geography Markup Language (GML) as encoded in various ways.
OGC Web Services (OWS) 3 UGAS Tool  0.0.3  05-118  Clemens Portele, Rafael Renkert 2006-04-28
This document contains a description of the UGAS (UML Application Schema to GML ApplicationSchema conversion) tool development in the decision support services thread (GeoDSS) during the OWS-3 initiative.
Temporal Standard Recommendations  0.0.9  06-022r1  James Resler 2006-04-21
This document summarizes recommendations for extending geospatial standards with regard to time-varying information. These proposals are the result of the National Technology Alliance program called Temporal Evaluation and Assessment (TEA).
OWS 3 GML Investigations - Performance Experiment by Galdos Systems  0.0.4  05-101  David Burggraf 2006-04-19
In this experiment, the retrieval time of GML features from a Web Feature Service (WFS) to a WFS client will be studied by varying certain control parameters including methods of encoding and compression. Four different control parameters including encoding format, data set size, bandwidth, and feature type will be varied to test the relative performance in each case.
OWS-3 Imagery Workflow Experiments: Enhanced Service Infrastructure Technology Architecture and Standards in the OWS-3 Testbe  0.9  05-140  Yves Coene 2006-03-30
This document describes the results of an experiment addressing issues relating to the application workflow processing incorporating a variety of OGC specifications. It details the inputs provided to the Open Geospatial Consortium's (OGC) OWS-3 Testbed and the architecture of the testbed related to the ESA Service Support Environment (SSE). It is a formal deliverable of work package 6610 of the Enhanced Service Infrastructure Technology (ESIT) project and is a joint Spacebel and Spot Image document.
Geo Video Web Service  0.0.9  05-115  Joe Lewis 2006-03-28
A GeoVideo Web Service (GVS) is a web service that facilitates the viewing of live and/or archived feeds from video cameras. The feeds may be composed of: - A video stream - Textual data in a caption stream (e.g. GPS data, camera states and characteristics, custom XML data, such as SensorMLTML) - A combination of a video stream and associated textual data The video streams of the feed may be viewed in the Windows Media Player. The textual data is extracted through scripting events that are generated as the caption stream is processed and displayed by the Windows Media Player.
GML Point Profile  0.4  05-029r4  Ron Lake, Carl Reed, George Percivall 2005-08-29
This document defines a profile of the Geography Markup Language (GML) for a point geometry. Attention is drawn to the fact that this is a profile of GML version 3.1.1.
WMS Change Request: Support for WSDL & SOAP  0.1.0  04-050r1  Philippe Duschene, Jerome Sonnet 2005-04-22
This change proposal is an outcome of the Common Architecture thread of the OpenGIS Web Service 2 initiative. The aim is to add support for a standard WSDL description of the WMS interface in version 1.3.1.
OWS-2 Application Schema Development  0.0.4  04-100  Clemens Portele 2005-04-13
The OWS-2 Application Schema Development Discussion Paper describes the process for creating ISO 19109:2005 Application Schemas [http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=39891] in UML. It also describes the process used during the OWS-2 Initiative [http://www.opengeospatial.org/projects/initiatives/ows-2] for creating GML [http://www.opengeospatial.org/standards/gml] Application Schemas from ISO 19109:2005 Application Schemas. See also the GML pages on OGC Network: http://www.ogcnetwork.net/gml .
OWS 2 Common Architecture: WSDL SOAP UDDI  1.0  04-060r1  Jerome Sonnett 2005-02-17
This OGC document reports the work that occurred in the OWS2 Test Bed Common Architecture thread. This thread focused on the use of UDDI/WSDL/SOAP in the OGC Web Services architecture. It also provides guidelines for the use of these technologies.
Web Image Classification Service (WICS)  0.3.3  05-017  Wenli Yang, Arliss Whiteside 2005-02-10
The Web Image Classification Service (WICS) supports classification of digital images. A digital image is composed of pixel values organized into one or more two-dimensional arrays. The two dimensions of an image represent two axes in space based on a spatial coordinate reference system. The dimensions of the different 2-D arrays comprising an image must be the same and represent exactly the same spatial locations.
Image CRSs for IH4DS  0.1.0  05-014  Arliss Whiteside 2005-01-31
This Discussion Paper specifies image coordinate reference system (CRS) definitions designed for possible use by WCTS and WCS servers and clients, initially in the IH4DS thread of the OWS 2 interoperability initiative. This report specifies image CRS definitions suitable for both ungeorectified and georectified images, where an ungeorectified image can be georeferenced or not.
Imagery Metadata  1.0  05-015  Barry Schlesinger 2005-01-27
Special XML schemas have been created for individual data sets, based on ISO 19115 and a general schema for the RSE. However, a generalized metadata XML schema should be available where possible; it should not be necessary to create special schemas for each data set. ISO 19139 can serve as such a general XML implementation specification for 19115. This implementation needs to be tested in practice. In addition, the new ISO standards are incorporating much, if not all, of the metadata not in 19115 that the RSE contain. XML schemas for these metadata need to be developed that are based upon the abstract model in the ISO standards. All of these implementations need to be tested in practice. This Report describes such tests and the results. It also describes to what extent metadata on which the test metadata are based are supported by 19139, to what extent they are supported by metadata specified in the new ISO standards or the RSE, and to what extent new metadata elements are needed.
Some image geometry models  1  04-071  Arliss Whiteside 2004-10-04
This discussion paper contains the material that is still relevant from Section 6 (or Appendix A) of the previous version 4 (document OGC 99-107) of OGC Abstract Specification Topic 7, titled "The Earth Imagery Case". That version of Topic 7 has now been superseded by a new version with the same title. In addition, some terminology has been revised to be consistent with the terminology now used in Topic 16: Image Coordinate Transformation Services. Specifically, the previous term "real-time image geometry model" has been changed to "approximate image geometry model". Also, the previous name "Universal Real-Time Image Geometry Model" has been changed to "Universal Image Geometry Model".
OWS1.2 Image Handling Requirements  0.1.4  04-052  Arliss Whiteside 2004-09-26
This document was developed as part of the Image Handling Thread of the OGC Web Services Initiative Phase 1 Thread Set 2 (OWS 1.2). This document specified the requirements for the image handling functions to be supported by draft specifications prepared under that thread.
OWS1.2 Image Handling Design  0.5  04-051  George Percivall 2004-09-26
Image Handling is a thread in the OGC Web Services 1.2 (OWS1.2). This document defines the system design for Image Handling in OWS1.2. The system design responds to the requirements in OWS 1.2 Image Handling Requirements. The system design specifies two main services: Image Archive Service and Image Catalogue Service. Interfaces for these two services are defined using previously defined OWS service interfaces.
Geospatial Portal Reference Architecture  0.2  04-039  Louis Rose 2004-09-22
This Guide has been developed by the members of the Open Geospatial Consortium, Inc. to assist the global geospatial technology community in implementing standards-based geospatial portal solutions that are compatible with Spatial Data Infrastructures in every nation. We offer this document as a resource for rapid development and informed acquisition of portals and portal-exploiting applications that can plug and play with geospatial data and services in your organization and other organizations in your community and around the world.
Geolinking Service  0.9.1  04-011r1  Peter Schut 2004-05-04
A Geolinking Service takes attribute data which refers to spatial features, and joins it to a geospatial dataset, so that it can be mapped by a WMS or used in a GIS. When a Geolinking Service uses data from a GDAS, and serves as a front end to a WMS, it enables real-time mapping of data stored in non-spatial databases.
Geolinked Data Access Service  0.9.1  04-010r1  Peter Schut 2004-05-04
A Geolinked Data Access Service (GDAS) provides a way to publish and access data that refers to spatial features (e.g. population data for countries). A GDAS can expose data from non-GIS databases so that it can be manipulated and mapped with the aid of a Geolinking Service.
OWS Messaging Framework  0.0.3  03-029  Stephane Fellah, Steven Keens 2003-01-20
This document defines a messaging framework to conduct communications between the OGC web services. It is independent of any transport protocol and any messaging encoding. By using the framework, the service designer could focus only on the message definitions and messaging flows for every action supported by the service, without worry on the messaging transport and delivery. The framework should considerably simplify the implementations of the OGC web services and should enable service chaining.
Web Services Architecture  0.3  03-025  Josh Lieberman 2003-01-18
Specifies and discusses a common architectural framework for OGC Web Services
Service Information Model  0.3.0  03-026  Joshua Lieberman 2003-01-17
SIM specifies and discusses a common information model for OGC Web Services, also known variously or in part as service capabilities or service metadata.
OGC Web Services UDDI Experiment  0.5  03-028  Josh Lieberman, Lou Reich, Peter Vretanos 2003-01-17
This document lists the design principles, requirements, and experimental results for future versions of a potential OGC - UDDI (Universal Discovery, Description, and Integration) profile of the OGC Catalog Implementation Specification. Specifically, it describes the usage scenarios, workplan, and experimental results for discovery of OGC services (including registries) through the UDDI interface using SOAP (Simple Object Access Protocol) messaging protocols. The baseline for this experiment is the specification for UDDI version 2 and use of private UDDI implementations.
OGC Web Services SOAP Experiment Report  0.8  03-014  J 2003-01-15
This document will discuss how OWS services can be ported to Web Services and highlight various issues/problems that have been discovered and need further discussion.
WMS Part 2: XML for Requests using HTTP Post  0.0.3  02-017r1  Jeff de La Beaujardiere 2002-08-24
This part of the Web Map Service (WMS) specification applies to those clients and servers which allow operation request encodings that are more complex than those permitted by the basic keyword/value encoding defined in WMS Part 1 [17]. Part 2 only describes the encoding of the request messages using Extensible Markup Language (XML); all other aspects of the Web Map Service are fully defined in Part 1.
Web Terrain Server  0.3.2  01-061  Raj Singh 2001-08-24
The purpose of theWeb Terrain Server (WTS) is to produce perspective views of georeferenced data - typically 3-dimensional coverages.
XML for Image and map Annotation  0.4  01-019  John Evans 2001-02-06
Defines an XML vocabulary to encode annotations on imagery, maps, and other geospatial data. This vocabulary draws on the Geography Markup Language (OpenGIS