the process for achieving interoperability in geoss agu fall meeting in43c-08
DESCRIPTION
What is GEOSS? GEOSS is a distributed data and information system of systems based on international cooperation efforts and focused on providing societal benefits. The intergovernmental Group on Earth Observations (GEO) is a voluntary partnership (72 countries + EC and 52 POs) focused on creating a system that will provide earth observations in a Comprehensive, Coordinated and Sustained fashion. Interoperability in GEOSS is a primary concern of GEO, given the wide diversity and essential independence of component systems contributed to GEOSS.TRANSCRIPT
The Process for Achieving Interoperability in GEOSS
AGU Fall MeetingIN43C-08
Contributors
• Siri Jodha Singh KhalsaNational Snow and Ice Data Center, Univ. Colorado & IEEE
• Stefano NativiItalian National Research CouncilUniversity of Florence at Prato
• David ThomasWorld Meteorological Organization
• Tim AhernIRIS Data Management Center
• Ryosuke ShibasakiCenter for Spatial Information Science, University of Tokyo
What is GEOSS?•GEOSS is a distributed data and information system of systems based on international cooperation efforts and focused on providing societal benefits.
•The intergovernmental Group on Earth Observations (GEO) is a voluntary partnership (72 countries + EC and 52 POs) focused on creating a system that will provide earth observations in a Comprehensive, Coordinated and Sustained fashion.
Interoperability in GEOSS is a primary concern of GEO, given the wide diversity and essential independence of
component systems contributed to GEOSS.
GEOSS Approach
• The purpose and design of the GEOSS architecture is centered on the goal of enabling and promoting synergy among diverse and independent systems
• Interactions of contributed systems are confined to well-defined service interfaces– Minimizes the impact to the component systems participating
in GEOSS– Requires that we define and record precisely what happens
at these system interfaces– Interactions should take place according to well-defined
standards, preferably open, international standards.
Interoperability Process
• The 1st task in the 1st GEO Workplan under the Architecture category was– “Establish and maintain a process for reaching
interoperability arrangements..”• Process should recognize existing
standards in use by GEOSS components– promote and encourage their adoption by other
participants– extend and broaden whatever consensus has
been achieved on common solutions
• This task also established a Standards and Interoperability Forum to provide advice, expertise and impartial guidance on standards and interoperability issues for GEOSS.
GEOSS Interoperability Principles
• Many components contributed to GEOSS are already capable of interoperating
• Disparate disciplines that do not traditionally interact may lack established common standards necessary for interoperability
• Not all GEOSS components will interface to a single common architecture– It is likely that GEOSS, at least in its initial stages, will
comprise many unique arrangements in which a small number of systems exchange data to achieve specific goals
– Process aimed at resolving interoperability issues that arise in the course of establishing these goal-oriented data exchanges
GEOSS Standards Registry
• The GEOSS Standards Registry is the reference database of interoperability arrangements for GEOSS– Services registered in the Service Registry
reference standards, or other interoperability “Special Arrangements” registered in the Standards Registry
– These standards describe the access protocols, data formats, schema, and other information necessary to access and utilize a GEOSS resource
GEOSSComponents
GEOSSServices
GEOSSStandards
GEOSS Special Arrangements
exposereference
maybecome
nominate
GEO Members and
ParticipatingOrganizations
offer
GEOSS Registries
U.S.A. IEEE
UDDI ebRS CSW SRU Web UIWeb UI
SIFExternal
StandardsBodies
Subject Matter
Experts
Supported access
protocols
Interoperability Special Arrangements
• Although GEO encourages the use of open international standards, GEOSS must also accommodate the use of ad hoc standards and other community practices
• The GEO ADC Standards and Interoperability Forum oversees the process for entering special arrangements into the Standards Registry
GEOSS Architecture
GEOSS Component and Service Registries
GEO PortalStandards and Interoperability
Forum
Users
GEOSS Clearinghouse
GEOSS Standards and Interoperability Registry
Standards Special Arrangements
ComponentsRegistry
ServicesRegistry
GEOSS Components & Services
Community Catalogs
GEOSS Contributor
Interoperability Process Pilot Project
• An Interoperability Process Pilot Project was conceived as a way to begin implementing the GEOSS infrastructure and exercising the interoperability process
• An initial set of disparate data systems was identified to participate through a set of interoperability scenarios
IP3 Scenarios
Weather Climate Air Quality
BiodiversitySpecies
Response to Climate Change
SeismologyLandslide Risk,
Fault LubricationGlacier Dynamics
and Seismic Events
ClimateCoordinated Energy and Water-Cycle
Observations
Health Meningitis Early Warning System Public Alerts
Implementation of Biodiversity Scenario
GEOSSRegistry
IPCC (NCAR) and Environmental Data
Ecological Niche Model
Implemented onOpenModeller
Server
In-situBiodiversityRecords
GI-cat/GI-go
GBIF Registry
Mediation Metadata Model: ISO 19115 core profile
Some Issues Revealed by IP3
• Attempting to register components and services unveiled issues with initial versions of GEO registries– Yielded valuable input from specific communities
• Catalog metadata must be adequate to support decisions on appropriate use– NCAR helped component developers fine tune their
requirements, which is not something that can be automated.
• Clearinghouse and Portal functions required in order to fully exercise the process
• Conformance testing and capturing user experience being addressed by SIF
Summary
• The IP3 is helping to develop and refine the The IP3 is helping to develop and refine the core infrastructure and interoperability core infrastructure and interoperability process for GEOSSprocess for GEOSS
• GEOSS interoperability process must operate GEOSS interoperability process must operate within a voluntary consensus frameworkwithin a voluntary consensus framework– There are technical, political and social dimensions There are technical, political and social dimensions
to considerto consider• Nominations for SIF Subject Matter Experts Nominations for SIF Subject Matter Experts
soughtsought
Links
• Standards Registry– http://seabass.ieee.org/groups/geoss
• Components and Services Registry– http://geossregistries.info/
• GEO Homepage– http://www.earthobservations.org/