Registry Services Bringing Value to US EPA, States, and Tribes Exchange Network Vendors Meeting...

Registry ServicesBringing Value to US EPA, States, and Tribes

Exchange Network Vendors MeetingApril 24, 2007

Cynthia Dickinson EPA/OEI/OIC

Data Standards Branch Chief

2data sets program system dataapplications

substances value domains facilitiesterms

XMLdata setsmetadata

Purpose

To outline a new approach to registries based on Service Oriented Architecture

To show how the registries can be used during project implementation




Overview

The Future: SOA

Terminology Management Services

Code Set Management Services

Enterprise Architecture Support Services

Quality Assurance Services

Managing Change

Ensuring Success

Appendix A: Data Standards Services

Appendix B: Semantic Vision for the Registries




The Future: SOA

US EPA and its partners are moving toward seamless machine to machine data transactions to increase accuracy, efficiency, reliability, and reduce cost

Registries support: Terminology management services Code set management and translation services Enterprise architecture services Quality assurance Change management




Terminology Management Services

Current services Access to environmental terms and definitions Repository and support for stewards managing environmental term sets such as

glossaries, taxonomies (hierarchies), keyword lists, or thesauri (operational April 16) Create new terminology structures (such as glossaries) from existing terms

Future services (Summer 2008) Automated download and update of term sets from Environmental Terminology System

and Services (ETSS) to any system or web page (support for refresh of web-displayed glossaries will be first)

New front end for EPA and partners to retrieve terminology (currently in design phase) Collaborative area and support services for communities of interest developing term lists

and taxonomies Vision

Storage and maintenance of ontologies to support future semantic development in the IT industry




Code Set Management Services

Current services Easy access to code sets/value sets related to data standards and other

commonly used lists in the Substance Registry System (SRS) and the Facility Registry System (FRS)

As of February 2007 Enhanced SRS allows exchange and management of federal and state chemicals with substance web services for:

Discover and compare (single substance query) Load (submit new substances that are in SRS but not in programmatic

list) Maintain system accuracy (solicit bulk loads to refresh programmatic

systems) Future services

Enhanced user front end for SRS and reporting capability (by November 1) New Environmental Data Registry (EDR) will allow code set management

and mapping for program offices and EN partners Web services for translation between code sets traveling on the Exchange

Network




Code Set Management Services (cont.)

Business need for managing multiple code set values States and Tribes have their own “environmental interest” values

US EPA has its “environmental interest” values

Use value meaning as connector reduce mappings (Case 3)

State A

Tribe A

State B

Tribe B

Tribe ATribe A

State BState B State AState A

Tribe B Tribe BState C

EPAEPA

EPA

Case 2 – Limited Use Case 3 - SolutionCase 1 - Undesirable




Cross Reference Between Code Sets

Via Value MeaningValue Meaning for Environmental Interest

(Part of Facility Identification Standard)

US EPA Value Connecticut DEP Value

Facilities classified as a Clean Air Act Stationary Source Major discharger of air pollutants according to the Alabama power decision's definition of a major source or the 1993 EPA Compliance Monitoring Branch Classification Guidance.

Air Major Title V Stationary Sources

Facilities classified as a CAA Stationary Source Minor discharger of air pollutants.

Air Minor GPLPE

Environmental programs that maintain a national emission inventory which characterizes emissions of hazardous air pollutants (HAPS). HAPS, which are also known as air toxics, are defined in Section 112(b) of the 1990 Clean Air Act Amendments.

Hazardous Air Pollutants Inventory

HAPS

The EPCRA program providing the public with knowledge of and access to information regarding the use, storage, production, and release of hazardous chemicals to the environment, and encourages and supports response planning for environmental emergencies.

EPCRA Tier II Reporting




Enterprise Architecture Support Services

Current services Locate US EPA systems/applications in the Registry of US EPA

Applications and Databases (READ) Access to Exchange Network XML schema (XML Registry)

Future services (late 2008) Find US EPA system/application data dictionaries in EDR Enhanced compare tool will allow developers to find:

Similar data elements across US EPA systems US EPA data elements that match Exchange Network data standards

Vision Service Component Registry and Repository (SCRR)




Service Component Registry and Repository (SCRR)

An integrated vehicle for outreach and discovery of different types of reusable system components designed by US EPA and Exchange Network partners

Registry (and sometimes repository) for: Web services Reusable software designs and templates Metadata and data services XML data flows and shared schema components Other data flows Data models (conceptual, logical, physical) Reusable pieces of code, in various languages Development models and guidance, such as the Core Reference Model (CRM)

Will leverage existing registries and repositories (UDDI, ENDS) and may add new ones. Requirements effort beginning by June.




Quality Assurance Services

Quality assurance oversight for registration Improved stewardship processes (built into the new registries) – data

maintained by people that know it best. Oversight by others. Automated quality review of metadata – increasing dependence on

web services Maintenance of:

Authoritative source of chemicals and facility information for US EPA Authoritative US EPA system inventory Comprehensive catalog of XML schema for Exchange Network use

Other related quality services CDX Schematron for program system business rules Generic XML document parsing service




Managing Change

Shifting from operating registries to delivering services

Transferring stewardship to those responsible for the data while improving quality assurance

Identifying cost recovery/avoidance opportunities

Increasing the emphasis on SOA

Addressing business needs for classifying information




Ensuring Success

This approach will allow US EPA and its Exchange Network partners to better

– Document and store;

– Identify and locate;

– Translate and use; and

– Enable integration of

environmental information for all users




Services Enabled by Registries

Service RegistryEDR READ ETSS SRS and

FRSXML/

SCRR

Enterprise Architecture Support

Data Standards

Code Set Management

Terminology Management

Quality Assurance




Appendix A

Data Standards Services




Data Standards Services

Development - Collaborative process Standards development procedures and processes enable partners to

develop standards collaboratively. ENLC approves all data standard development initiatives and products. Action teams of subject matter experts are convened to develop the

standards. Public comment is solicited. Subject matter experts also review. Comments

are resolved by action teams Maintenance - Periodic or as needed

Standards are reviewed periodically or when users request changes Some standards may include standardized code sets (these changed as

new codes become available or in response to user requests) ENLC approves changes




Data Standards Services (cont.)

Access - Information about EN data standards is available as: Text documents on Environmental Data Standards Council (now

superseded by the ENLC) website at http://www.envdatastandards.net Also available as data elements within the US EPA Environmental Data

Registry at http://www.epa.gov/edr Support for Implementation –

ECOS and US EPA staff are available to answer questions about standards and assist developers implementing standards

Implementation guidance is specific to each state, tribe, or US EPA US EPA is offering a training course in Data Standards Implementation (EN

partners are welcome to attend)




Appendix B

Semantic Vision for Registries




System of Registries Semantic Vision

XML Registry

Data Element Concepts,

Value Meanings

Environmental Data

Registry(EDR)

Data Dictionaries

ThesauriClassification

Schemes (Taxonomies)

SystemOntologies

Reference and Data Models

Code Sets

Business Area

OntologiesData ElementNames and Definitions Controlled

Vocabularies

Data Standards

Terms

XML Schema

Black – Current CapabilityRed – Future Capability

andRelationships

XML Tags

EnvironmentalTerminology

System and

Services (ETSS)

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