1. Air Quality Data Systems and the GEOSS Architecture Rudolf B. Husar, Washington University Given at the OGC Technical Committee Meeting St. Louis, MO, March 24, 2006 Expanding on Presentations by Doug Nebert , March 2008, ESIP Web Services. George Percivall , February 2008 , ADC-6-Report

2. GEOSS Architecture Describes how components fit together for providing data and information that will be better …than the individual components or systems of which it is composed. Links together strategies and systems to facilitate Earth observations in a comprehensive, coordinated, and sustained manner. By 2015, GEOSS will be a distributed system of systems, building step-by-step on current cooperation efforts among existing observing and processing systems within their mandates, while encouraging and accommodating new components. GEOSS

3. Core GEOSS Architecture GEOSS Component, Service registry Standards, Special Arrangements Registries references GEO Web Portal and other Clients searches Offerors contribute to register GEOSS Clearinghouse User accesses list of catalogues accesses searches invokes reference From Percivall , Feb 2008 Catalogues Services

4. GEOSS Architecture for the Air Quality Community (March 2008) GEOSS Comp. Registry Community AQ Portal extracts Service Offeror registers GEOSS Clearinghouse Catalog list Searches, harvests bind, invoke references publish provides Standards; SIF Registry Adopted from Percivall , Feb 2008 by R. Husar, March 2008 Community AQ Catalog Catalog User find, select links to GEOSS Community Service Offerors, Users Services

5. GEOSS Architecture for the Air Quality Community (March 2008) 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 GEOSS Community Service Offerors, Users Services

6. GEOSS Architecture for the Air Quality Community (March 2008) 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 GEOSS Community Service Offerors, Users, Community of Practice links to Services Community Of Practice

7. GEO Web Site Client Tier Information Services Tier Access Tier GEO Web Portal GEOSS Registries Standards, Requirements Components, Services Other Access Services Data Access Services Model Access Services Client Apps GEOSS Clearinghouse Sensor Access Services IOC Architecture – Engineering Viewpoint (Feb 2008) GEO Core Services Communal Services Data Services Adopted from Percivall , Feb 2008 by R. Husar GEOSS Community Portals GEOSS Community Catalogues Process, Portray Other, Workflow

8. AI Pilot Development Approach Development Activities Kick-off Workshop Call for Participation Concept Development Persistent Operations (AR-07-01) Participation Participation Participation Participation Participation AR-07-02 Architecture Implementation Pilot Evolutionary Development Process Operational Baseline for next evolutionary spiral From Percivall , Feb 2008 Architecture Documentation Updates for each step Baseline

9. AIP Process improvement ideas Comments on AIP Process Process Improvement Functionality defined by developers not users UIC/ADC collab., Workshops; Operational SBA functionality AIP Process is closed Make development iterative; Anyone can join at anytime Process focused on demonstrations More operational persistence; Deliver AR-07-01 Operations Too structured: milestones, deliverables Retain structure within phase; More iterative, open approach Adopted from Percivall , Feb 2008 by R. Husar Contact with UIC; Toronto, Workshop; Open Invitations, ESIP, CoP wiki Expand AQ Data Netw; Seek link to AR-07-01 One phase at a time; Feedback, feedback Air Quality CoP Approach