presented by wendy blake-coleman environmental protection agency geospatial best practices for...
TRANSCRIPT
Presented by Wendy Blake-Coleman Environmental Protection Agency
Geospatial Best practices for Architects
April 11, 2007, Workshop
Developing an Enterprise Geospatial Segment Architecture
Data Lessons -EPA
U.S. Environmental Protection Agency: April 11, 2007 2
Topics
Definition of Activity Developing an Enterprise geospatial data architecture
Guiding Principles for Developing a Geospatial Data Architecture
Relationship to the Geospatial Segment of the Agency’s Enterprise Architecture
Examples Region 4 Data Consolidation OAQPS GeoData Gateway
Challenges/Lessons Learned
U.S. Environmental Protection Agency: April 11, 2007 3
Definition of Activity
Background
Baseline data inventory provided insight into existing geospatial data status and accessibility
Key Areas Identified to Address
Data Quality Data Access Central Services Data Partnerships
Current Efforts
National Geospatial Data Policy (NGDP) – August 2005
Target Geo Segment of the Agency EA – In Progress
State-EPA Partnerships to Share Geospatial Data
U.S. Environmental Protection Agency: April 11, 2007 4
The segment encompasses all architectural layers
EPA Geospatial Segment
Business
Data
Applications & Services
Technology
Strategic
Office of Information Collection
Office of Information Analysis &
Access
Maintain and Enhance Geo
Stds.& Policies
Geo-enable Business thru
Solutions Arch.
Goal 1: Business
Goal 5: Governance
Engage Agency in Updating Geospatial Architecture
Enterprise Licenses
Geospatial Technology
Infrastructure
Goal 4: Technology
Geospatial Service
Components
Geo-enabled Enterprise
Tools
Goal 3: Applications
Build Geospatial
Data Catalog
Establish Regional
Repositories
Acquire Data Assets
Goal 2:Data
Support ER/HS & Other EPA
Priorities
Provide Training &
Workplace Dev.
Implement Geo Policy
Framework
U.S. Environmental Protection Agency: April 11, 2007 5
Guiding Principles
Business Processes are Key Start with business use of data to determine needs
Governance and Stewardship Distributed warehouse and data mart approach requires a new approach toward
geospatial data stewardship across the agency Strong emphasis on metadata creation, access and maintenance
Data Quality High quality locational and attribute information is critical Focusing on data quality and consolidation can be more cost effective
Infrastructure SOA requires investment in reliable and robust infrastructure
U.S. Environmental Protection Agency: April 11, 2007 6
Example 1: Centralizing Data - Region 4’s Geospatial Vector Data Sets
8 2
80
0
135
40
300
0
130 150
653
192
ERRB PPERB Water SESD GRITS Total
Before After
Data Consolidation Comparison
U.S. Environmental Protection Agency: April 11, 2007 7
Example 2: Geo-enabling EPA Warehouses – OAR’s AirQuest Example
GeoEnabling the AirQuest Data Warehouse and Providing Access in multiple formats (WMS, WFS, ArcSDE, etc.)
Tables: AirQuest Maps: AQMaps
Data Geospatial Data Delivery Capabilities
Each system has a capability the other system needs
U.S. Environmental Protection Agency: April 11, 2007 8
Current Design: Consolidate Data Sets and Geo-enable through ESRI Tools
OAQPS data:AQS Monitored info
NEI Emission sources
Air Quality Modeling
Future Year Population Projections
Air Now Real-Time AQ information
2000 Census Data
Meterology Data
Emissions from Utilities
Emissions Factors
NATA
NAPA
Outside Partners
OAQPS Tools:
RSM VPA?
ASAP?
BenMap?
Etc…
Desktop GIS Systems at EPA
Other systems developed by OEI, such as the GeoData Gateway
Outside Partner Data Products
Online Geospatial Tools
AirQuest Data WarehouseOrganizes the
data into a single format with adequate metadata
and a single coordinate system
U.S. Environmental Protection Agency: April 11, 2007 9
Overview of Target
OAQPS data:AQS Monitored info
NEI Emission sources
Air Quality Modeling
Air Now Real-Time AQ information
Meteorology Data
Emissions from Utilities
Emissions Factors
Outside Partners
OAQPS Tools:
RSM VPA?
ASAP?
BenMap?
Etc…
Desktop GIS Systems at EPA
Other systems developed by OEI, such as the GeoData Gateway
Outside Partner Data Products
Online Geospatial Tools
Agency data:2000 Census Data
NATA Cancer Incidence
NAPA
Tribal Boundaries
Future Year Projections
OEI National GeoData Sets
Manages data ofcross-Agency
importance to assurea “single version ofthe truth” for geo
analyses
AirQuest Data WarehouseOrganizes OAR
data into a single format with adequate metadata
and a single coordinate system
EPA Needs to Implement Geo Data Architecture at the Enterprise Scale
• Beyond metadata: Develop governance and procedures to implement key phases of the geospatial data lifecycle
• Support “a single version of the truth” for geo assets of Agency-wide importance
• Host and steward program-specific sets in program/regional/lab geo-enabled warehouses
U.S. Environmental Protection Agency: April 11, 2007 10
Example 3: Central Services Provided at EPA’s National Computer Center
Enterprise Data Services Offered to Agency Personnel
U.S. Environmental Protection Agency: April 11, 2007 11
Providing Access to Data Across the Agency: Region 4, OAQPS, and others
OAQPS data:AQS Monitored info
NEI Emission sources
Air Quality Modeling
Air Now Real-Time AQ information
Meteorology Data
Emissions from Utilities
Emissions Factors
Outside Partners
OAQPS Tools:
RSM VPA?
ASAP?
BenMap?
Etc…
Desktop GIS Systems at EPA
Other systems developed by OEI, such as the GeoData Gateway
Outside Partner Data Products
Online Geospatial Tools
Agency data:2000 Census Data
NATA Cancer Incidence
NAPA
Tribal Boundaries
Future Year Projections
OEI National GeoData Sets
Manages data ofcross-Agency
importance to assurea “single version ofthe truth” for geo
analyses
AirQuest Data WarehouseOrganizes OAR
data into a single format with adequate metadata
and a single coordinate system
EPA’s Metadata Management Procedure under the NGDP is complete and ready for formal approval
U.S. Environmental Protection Agency: April 11, 2007 12
Geospatial Data Discovery on the Exchange Network
Web UI
Geo-ExchangeWeb CDX user
System Users
CDX Node EPA RTP
CDX Node Database
Internet
Geo-ExchangeSearch and Discovery
FormsLogin
ArchiveLog
WI Node
Web Services
Web Services
Geo-ExchangeDataflow
Service Provider
Metadata Search
Connector
SCOCatalogServer(Isite)
Z39.50Connector
RTP Node
Metadata Search
Connector
RTPMetadata
Server(ESRI
Arc SDE)
Z39.50Connector
CDX NodeMetadata Catalog
Provider
· Provide search criteria· View search result
· Support mapping capability to define boundary;· Store the search request;· Solicit the search from the user defined catalog
providers;· Present search result to the user; and· Present search history.
· Receive the solicit search request from CDX Node;
· Communicate the search request to the search engine via the connector;
· Return the search result to CDX Node.
CDX Web Geo-Exchange User
Web Services
U.S. Environmental Protection Agency: April 11, 2007 13
Data Partnerships Are Key
U.S. Environmental Protection Agency: April 11, 2007 14
Challenges/Lessons Learned
Governance and oversight are key
Centralization is not possible without reliable and robust infrastructure
Will not obtain full benefit of a geo-data architecture without reengineering business processes
Data quality and sustainable funding are critical
U.S. Environmental Protection Agency: April 11, 2007 15
Questions?
Wendy Blake-Coleman (202) 566-1709