Multi-disciplinary Interoperability: the EuroGEOSS Operating Capacities

Transcription

1 Multi-disciplinary Interoperability: the EuroGEOSS Operating Capacities Stefano Nativi (CNR) Opening and context for Global Dimension Stream: EuroGEOSS contribution to the Global Earth Observation System of Systems Thursday, June 24, Krakow, Poland

2 Outline Rationale System of Systems approach and architecture Brokering SOA (B-SOA) EuroGEOSS Operating Capacities Lessons learned and Future development

3 Rationale Contribution to the following Objective Formation and operation of an Earth system science community, based on multidisciplinary knowledge integration Develop advanced digital earth infrastructures: multi-disciplinary cyber(e)-infrastructure Interoperability across disciplines Semantic Technical Organizational

4 INSPIRE and GEOSS principles Implement a system of systems Consisting of existing and future information systems Supplementing but not supplanting systems mandates and governance arrangements Build on existing Resources and Interoperability Standards Register (existing systems) Mediate (non-standard capacities) Interconnect (standard capacities) Domain Communities should provide: Metadata to describe available spatial resources Network services to discover, transform, view and download spatial resources invoke advanced processing services to support decision making

5 System of Systems approach Collect task-oriented, autonomous systems that pool their resources together to obtain a new, more complex, 'meta-system Shift from technical interoperability towards conceptual composability by recognizing and specifying interoperability arrangements Deal with holistic solutions holistic solutions to implement service interoperability and metadata sharing among communities and autonomous systems

6 System of Systems architecture Build incrementally on existing infrastructures (information systems) and incorporate heterogeneous resources Infrastructure the set of data models, services, and conventions that should not have to be recreated for each application the core of general functionality upon which other systems (e.g. other infrastructures) can be built Three main infrastructures Domain Semantics 1. Distributed Computing Infrastructure(s) Distributed Capacity provision functionalities 2. Geospatial Information Infrastructure Geospatial resources core functionalities 3. Digital Earth Infrastructure Earth system science core functionalities Digital Earth Infrastructure Geospatial Information Infrastructure EuroGEOSS contribution Distributed to the Global Computing EO SoS Infrastructure Krakow, 24 June (s) 2010

7 System of Systems architecture Shift from technical interoperability towards conceptual composability Interoperability Arrangements must be able to align (and where necessary to harmonize) the heterogeneous system conceptual models. connect autonomous systems at different infrastructural levels not require tight coupling or strong integrations -only define how system components interface with each other Need to raise the level of abstraction and cope with systems complexity Service-Oriented Architectures (SOA) and Model Driven Approach (MDA)

8 Brokering SOA (B-SOA) SOA and MDA must be adapted to avoid tight coupling or strong integrations among SoS components Introduce brokering and mediation frameworks for resources Discovery, access, processing and chaining... System G System A System B System C System D System E System F bind bind Interoperability Arrangements Discovery Broker Access Broker System B System G System F System E

9 B-SOA framework Extend the traditional SOA approach Address SoS complexity Many heterogeneous systems Flexibility to support future systems avoid tight coupling or strong integration Service Provider Server Publish 1 Harvest 4 Service Registry Bind Harvest Bind 3 3 Order Protocol sharing Find 2 Service Broker Mediator

10 Operating Capacity: three Interoperability phases II. Enable multi-disciplinary interoperability WP2: Multi-disciplinary interoperability Digital Earth Infrastr. Geospatial Information Infras.

11 The EuroGEOSS Initial Operating Capacity (IOC) Geospatial Information Infras.

12 GEO Portal GEO Clearighouse Catalogs GCI GEO Registries EuroGEOSS IOC Metadata Editor(s) EuroGEOSS Brokering Platform (GeoRSS support) Distributed Catalog Registries Inventory servers Data Services Catalogs Data Data Data

13 Provided Interfaces & Supported Resource types Service Providers (Resource Servers) «CatalogInterface» Published Interfaces + CSW2.0.2-ebRIM/CIM CSW2.0.2-ebRIM/EO CSW2.0.2-ISO1.0 + GI-cat Extended interface 7.x + OAI-PMH2.0 + OpenSearch-GENESI-DR + OpenSearch1.1 EuroGEOSS Brokering Platform (GeoRSS support) + CSW2.0.2-Core + CSW2.0.2-ebRIM/CIM CSW2.0.2-ebRIM/EO CSW2.0.2-ISO1.0 + Deegree2.2 + GBIF + GDACS + GeoNetwork GeoNetwork GeoRSS2.0 + GI-cat6.x + GI-cat7.x + NetCDF-CF1.4 + OAI-PMH2.0 + OpenSearch1.1 + THREDDS WCS1.0 + WCS WFS WFS WMS WMS WPS CDI

14 Profilers OpenSearch CS W(T)/ ISO AP CS-W/ ebrim-cim AP CS-W/ ebrim-eo AP Common Data Model ISO Core profile +Extensions( eb RIM/CIM /EO) Distributor Asynchronous messaging. Harvesters Accessors OWS Accessors CS W AP Accessors GBIF Accessor OpenSearch Accessor THREDDS/ OPeNDAP Accessor CDI Accessor OAI-PMH OAI PMH Accessor GeoRSS Accessor Extended Interface netcdf Accessor

15 GEO Clearighouse Catalogs GCI GEO Portal GEO Registries Workflow Workflows EuroGEOSS AOC Modeling Model Services Ontology Semantic-enabled enabled Discovery and Processing Model BP EuroGEOSS Brokering Platform (GeoRSS support) METADATA EDITOR(S) Common geographical Grid framework DISTRIBUTED CATALOG Inventory Servers Data Registries Catalogs Data Services Web 2.0 Resources Data EuroGEOSS contribution to the Global EO SoS Krakow, Data 24 June 2010 knowledge

16 The EuroGEOSS Advanced Operating Capacity (AOC) Digital Earth Infrastr. Geospatial Information Infras.

17 «Service Providers» Geospatial Resources «Service Providers» Web 2.0 resources «Broker» Geospatial Data Access Broker «Advanced Module» Semantic Discovery Broker CSW «Broker» Catalog Discov ery Broker OpenSearch «Advanced Module» Adapters SPARQL «Advanced Module» Semantic engine «Semantic Resources» Thesauri WFS «Service Providers» Gazzetters

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19 Lessons learned and future developments S&T Challenges Connect autonomous systems at different infrastructural levels Shift from technical interoperability towards conceptual composability Utilise brokering and mediation service frameworks Develop holistic interdisciplinary approaches & frameworks for Digital Earth applications Provide specific guidance to assist the Earth sciences community in the evolution and/or development of their systems (organizational interop.) Numerous systems, geographically dispersed, and evolving on their own time scales.

20 EuroGEOSS Partners