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What is OGC Interoperability? - The General What is OGC Interoperability? - The General IdeaIdea
• The ability of systems to exchange and use information and services.
– By "systems," we mean software processes, services and other components, the data, hardware, and supporting networks.
• This capability comes from open standards.
• OGC has developed an open framework that enables geospatial interoperability. – using a global-based voluntary consensus-based process -- specifications
that result -- describe open, vendor-neutral, and non-proprietary interfaces, encodings and human to machine vocabularies.
INTEROPERABILITY: the ability of two or more autonomous, heterogeneous, distributed digital entities (e.g. systems, applications, procedures, directories, inventories or data sets) to communicate and cooperate among themselves despite differences in language, context, format or content. These entities should be able to interact with one another in meaningful ways without special effort by the user - the data producer or consumer - be it human or machine.
OGC’s Place in the MarketOGC’s Place in the Market
• To enable interoperability– OGC operates our consensus process with industry,
government and academic members to define architectures and interfaces
– OGC commercial vendor and integrator members write and sell software that uses our published OGC interfaces
– Interface specifications are also made public
– Users like yourselves -- employ OGC-based architectures -- to decide what software to buy that satisfies your requirements and operational necessities
Geo and the Federal Enterprise ArchitectureGeo and the Federal Enterprise Architecture
• Federated interoperability means that the ‘hidden geospatial’ elements in all government data needs to be accessible and useable– FGDC defining a Geospatial profile of the FEA– Project Visible at Geospatial Community of Practice Wiki
• Geo Profile is an ‘overlay’ to all other lines of business– Some agencies have lines of business that are entirely geospatial
• USGS, Census, others
– Some agencies have lines of business that just include some data elements that are geospatial• HUD has thousands of housing units each with its own address
– That address is geospatial, even though HUD uses it only as a mail box
• A single data model or specification for all domains is extremely unlikelyA single data model or specification for all domains is extremely unlikely
• Traditional bulk transfer of data (sets) is often too inflexible and not meeting Traditional bulk transfer of data (sets) is often too inflexible and not meeting user requirementsuser requirements
• Approach focussing on providing services to the information gained from Approach focussing on providing services to the information gained from different data holdings is required different data holdings is required
• Application Schema defines content and structure of data but may also specify Application Schema defines content and structure of data but may also specify services for accessing and manipulating data by an applicationservices for accessing and manipulating data by an application
• Services Architecture details the required services and interfaces to implement Services Architecture details the required services and interfaces to implement a solution that serves the user information requirements through automated a solution that serves the user information requirements through automated translation of existing data sources and their existing stovepipe data models into translation of existing data sources and their existing stovepipe data models into harmonized schemas with resulting output suitable for sharing and human useharmonized schemas with resulting output suitable for sharing and human use
Data Harmonization Approach (1)Data Harmonization Approach (1)
Data Harmonization Approach (2)Data Harmonization Approach (2)
• Application Schema specifies the domain specific feature typesApplication Schema specifies the domain specific feature types– describing the specific view of the real world based on the information describing the specific view of the real world based on the information
requirements of that domainrequirements of that domain
– Define the core concepts of the domain in a meaningful way (e.g. “lake”, Define the core concepts of the domain in a meaningful way (e.g. “lake”, “parcel”, “road”) along with their attributes, properties, possible “parcel”, “road”) along with their attributes, properties, possible constraints, etc.constraints, etc.
• Proven to be extremely valuable in building geospatial information Proven to be extremely valuable in building geospatial information networks comprising heterogeneous data sourcesnetworks comprising heterogeneous data sources
• OGC leads the development of web based geospatial standards based on common architecture methods
• U.S. government is defining Federal Enterprise Architecture – OGC architecture fits into FEA
• Data and services will move interoperably around the government – – Easing insertion of new technologies and updating old ones– Protecting value of legacy data and systems
• COG and member organizations need to share data and use a plethora of sources... – COG will need to situate itself within the FEA framework– COG will need to consider an iterative development strategy– Today’s requirements for exchanging geospatial data and the multi
jurisdictional nature of those sources requires COG to consider using open, industry standardization for sharing information between jurisdictions