coastal geotools charleston sc january 2003 making metadata work for you lynda wayne fgdc metadata...
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Coastal GeoTools • Charleston SC • January 2003
Making Metadata Work for You
Lynda WayneFGDC Metadata Education Coordinator / GeoMaxim
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What IS Metadata?
Data ‘reporting’
WHO created the data?
WHAT is the content of the data?
WHEN was it created?
WHERE is it geographically?
HOW was the data developed?
WHY was the data developed?
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What IS Metadata?
title
supplemental information
abstract
time period
author
sources
(file) size
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What IS Metadata?
entity
attributes
view actual metadata record
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Metadataas a Data Component
Metadata is that part of the data that: • enables data discovery• facilitates data import, display, management• provides data consumer information• instills data accountability• limits data liability
Accurate metadata is
fundamental to data quality
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Value of MetadataCurrent concept
Data • discovery• assessment• access• use• inheritance
external value
internal value
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Value of MetadataEmerging Concept
Data Management• discovery• assessment• access• use
internal value
……………………..and more
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Value of MetadataData Management
Data Currency• last edits/updates• age of source filesData Utility / CBA• # uses as source file• distribution frequency
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Value of MetadataData Management
Monitor Data Development• data processing steps• statusEstimate Data Development
Costs• data processing (time and extent)• source file availability
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Making Metadata Part of the Process
To realize the data management potential, metadata creation must become integrated into the data development process
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Making Metadata Part of the Process
But what can I do to better incorporate metadata into the data development process?
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Make the business case:• preserve data investments• limit data liability• manage data resources• find external data resources• easier data transfer• more efficient data distribution
Step One:build adminstrative support
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Emphasize individual benefits:
• reduce workload..in the long term• field fewer data inquiries• document personal contributions
Step Two:build technical support
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Support your staff• include in job descriptions &
performance measures• provide staff support
timetoolstraining
Step Two:build technical support
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For your organization, projects, and common data types: identify pertinent fields populate fixed fields
standardized language distribution methods standards used
build source and contact libraries
Step Three:create templates
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Map fields to the work flow Establish and assign responsibilities
Technicians - lineageAnalyst - process methodologyField Scientists - accuracy assessmentIT Managers - tools, automated
collection, information management
Step Four:distribute the effort
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Managers Can WRITE metadataData planning fields
• title • abstract • purpose • keywords• dbase design • geographic extent• coordinate system • more…
and manage the effort metadata coordination metadata enforcement
Step Five:lead by example
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Establish Policies: mandate use of standards and templates develop boilerplate metadata deliverable
language for data contractors require units to publish their metadata publish metadata SOP to document policies and procedures
Step Six:policies and procedures
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Making Metadata Part of the Process
New tools enable us to better integrate metadata creation into the data development process
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New Data Management Toolssuch as…
ESRI ArcCatalog & Intergraph/SMMS enable:• metadata creation / edit• auto population• CSDGM / ISO support• data synchronicity
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New Data Management ToolsExample: ArcCatalog
Search your data by:• full text• keywords • dates
Explore your data by:• geography• attributes / tables
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New ToolsExample: ArcCatalog
Manage your data by:• create metadata for project folders, files,
and features• define shapefile coordinate system• generate coverage topology• add attributes• create relations between features• delete, rename files
…your GIS Windows Explorer
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Metadata UtilityAnalogy
We’ve created the card catalog to:• locate • distribute • archive
Now, use the information system to:• create • merge • maintain• assess • relate • monitor• access • edit • update
ISO Metadata can help….
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What is ISO
International Organisation for Standards
International standards organization (ANSI is U.S. rep to ISO)U.S. is one of approximately 92 member nations
ISO/TC 211
Framework and reference model
Geospatial models andoperators
Geospatial data admin
Geospatial services
Profiles andstandards
WG 1WG 1
ISO/TC 211ISO/TC 211
1. Reference model
2. Overview
3. Conceptual schema language
4. Terminology
5. Conformance and testing
7. Spatial subschema
8. Temporal subschema
9. Rules for application schema
20. Spatial operators
10. Cataloguing
11. Geodetic reference systems
12. Indirect reference systems
13. Quality
14. Quality evaluation procedures
15. Metadata
16. Positioning services
17. Portrayal of geographic information
18. Encoding
19. Services
6. Profiles Reports
Functional standards Raster and Gridded Data
WG 2WG 2 WG 3WG 3 WG 4WG 4 WG 5WG 5
USA AUS UK NLDNOR
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Why change our standard?
Politically…responsible member of international geospatial community
Technically…improved normalizationenhanced capabilitiesinteroperability
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What’s new with ISO 19115?
1. Expanded Content 2. New Terminology 3. Design method: UML / XML4. Implementation via tools5. Metadata Hierarchy
ISO
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What’s new with ISO 19115?
Metadata Hierarchy:Meta can be created for different levels:
Data Series - wetlandsDataset - Paducah wetlandsFeature Type - marshFeature Instance - Mandy’s MarshAttribute Type - SalinityAttribute Instance - actual % salinity
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What are the core ISO elements?
Elements that must occur in each profile:Dataset TitleDataset Reference DateDataset Responsible PartyGeographic Location (by 4 coords)Dataset LanguageDataset Character Set
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What are the core ISO elements?
Dataset Topic Category Spatial Resolution AbstractDistribution FormatExtent Spatial RepresentationReference System
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What are the core ISO elements?
Lineage StatementOnline ResourceMetadata File IdentifierMetadata Standard NameMetadata Standard VersionMetadata LanguageMetadata Character Set
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What are the core ISO elements?
Metadata Point of ContactMetadata Date Stamp
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ISO Profile Components
core elements extensions
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What is the process for ISO 19115 implementation?
1. Adoption by ISO2. U.S. Profile Drafted3. Adoption by ANSI4. ANSI Technical Amendments5. FGDC CSDGM Vers. 3.0
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What about my legacy metadata?
Crosswalks drafted for:CSDGM Vers. 2.0Dublin Core
Conversion software in developmentfunded by FGDCpending ISO final adoption
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How do I prepare?
Now….1. Continue metadata creation!!!2. Use ISO-poised software3. Add Topic Categories as a custom
element or theme keyword thesaurus 4. Participate in FGDC review of crosswalk5. Monitor FGDC website for news,
materials, and training opportunities
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How do I prepare?
Soon…6. Participate in ANSI reviews7. Develop a metadata conversion plan
using crosswalks and conversion software
8. Locally adopt CSDGM 3.0
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Contact Information
Lynda [email protected]
Sharon ShinFGDC Metadata Coordinator
[email protected]/metadata
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ISO: Topic Categories
farming health infrastructurebiota imagery environmentboundaries military atmosphereeconomy society inland waterslocation oceans geoscientificplanning / cadastre transportationutilities/communications
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