2. DataFed in a Nutshell: A Federation of autonomous, distributed data providers Performs non-intrusive wrapping of data into web services Provides service-based analysis services and tools General Experience with DataFed: It is an agile virtual data system can deliver info products to diverse users Third-party mediation can homogenize distributed data on the fly Since 2005, DataFed is used by EPA and in research DataFed Motivated by GEOSS DataFed development is guided by the meme of GEOSS
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6. Mediated User-Data Interface Mediator turns data into Views Mediated Integration is a flexible design pattern for System of Systems Client-Server design is demanding: User carries the burden of integration Query Data Views
7. SOAP RDF Mashup Workflow Mashups: Loose Coupling of Autonomous Applications DataFed – Wiki -- GoogleEarth
8. DataSpaces for Datasets GEOSS Comp. Registry Community AQ Portal extracts Service Offeror registers GEOSS Clearinghouse Catalog list Searches, harvests invokes references publishes provides Standards; SIF Registry Adopted from Percivall , Feb 2008 by R. Husar, March 2008 Community AQ Catalog Catalog User Service Workflow composes Data Analyst visualizes Reports to Decision Maker Policy Analyst Informs find links to GEOSS Core Service Offerors and Users Shared Metadata by the Users, for the Users Services Community DataSpaces
9. GEOSS Comp. Registry Community AQ Portal extracts Service Offeror registers GEOSS Clearinghouse Catalog list Searches, harvests invokes references publishes provides Standards; SIF Registry Adopted from Percivall , Feb 2008 by R. Husar, March 2008 Community AQ Catalog Service Workflow composes Data Analyst visualizes Reports to Decision Maker Policy Analyst Informs find links to GEOSS Core Service Offerors and Users Shared Metadata by the Users, for the Users views report Services Community DataSpaces
10. -+ GEOSS Comp. Registry Community AQ Portal extracts Service Offeror registers GEOSS Clearinghouse Catalog list Searches, harvests invokes references publishes provides Standards; SIF Registry Adopted from Percivall , Feb 2008 by R. Husar, March 2008 Community AQ Catalog Service Workflow composes Data Analyst visualizes Decision Maker Policy Analyst Informs find links to GEOSS Core Service Offerors and Users Shared Metadata by the Users, for the Users views report Services Community DataSpaces
![The Federated Data System DataFed: Experiences in Data Homogenization and Networking ,[object Object],[object Object],Spring AGU, May 29, 2008, Ft. Lauderdale](https://image.slidesharecdn.com/20080527-spring-agu-datafed-best-practices-13316/85/2008-05-27-Spring-AGU-DataFed-Best-Practices-1-320.jpg)
