1. GWG Metadata Focus Group (GWG MFG)
February 2006
Norman C. Andersen
Chair, MFG
NGA/NCGIS

2. GWG Focus Groups

3. GWG Focus Groups & Chairs
NITFS Technical Board (NTB), Steve Kerr
Motion Imagery Standards Board (MISB), John Zabitchuck
Community Sensor Model Working Group, Neil Sunderland, GWG Coordinator
GEOINT Reporting, Dave Irvin
Geographic Portrayal, Dan Gleason
Application Schemas for Feature Encoding, Cliff Daniels
Metadata, Norm Andersen
Information Transfer and Service Architecture, Dr. Charles Roswell & Glenn Guempel
Delete these slides – they are in your Intro section of the Focus Group briefings 3

4. Geospatial Metadata Harmonization Activities
- DoD Metadata Working Group (DoD MWG)
- Intelligence Community Metadata Working Group (IC MWG)
- International Organization for Standardization Technical Committee 211 (Geospatial) (ISO/TC211)
- ISO/International Electrotechnical Commission Joint Technical Committee 1 Sub-Committee 24
(ISO/IEC JTC1 SC24)
ISO/IEC JTC1 SC
- Advanced Geospatial Intelligence _______ Working Group (AGI __WG)
- Multi-Service Distributed Common Ground System Multi-Service Execution Team Metadata
Working Group (DCGS MET MWG)
American National Standards Institute/International Committee for Information Technology
Standards (ANSI/INCITS)
- Dept Homeland Security Community of Interest Metadata Working Group (DHS COI MWG)
- Digital Geospatial Information Metadata Working Group (DGIWG MWG)
- MASINT ______ Working Group (MASINT __WG)
- Motion Imagery Standards Board Metadata Working Group (MISB MWG)
- Multinational Geospatial Co-Production Group Technical Group (MGCP TG)
- National Imagery Transmission Format Standard Technical Board (NTB)
- NATO Air Group IV Metadata Harmonization Technical Support Team (AGIV MH TST)
- NGA Engineering Architecture (EA) (GeoScout)
NGA Image Product Libraries Access Standardization Working Group (IPL ASWG)
- Central Intelligence Agency (CIA)
- Defense Information Systems Agency (DISA)
- Federal Geographic Data Committee (FGDC)
Geospatial Intelligence Standards Working Group (GWG)
- Joint Interoperability Test Center (JITC)
National Reconnaissance Agency (NRO)
National Security Agency (NSA)
NGA Engineering Data Working Group Metadata Focus Group (EDWG MFG)
- NGA Enterprise Engineering (EE)
- Open Geospatial Consortium (OGC) Topic 11
Drivers
(mandatory reqts)
GWG
MFG
Producers
Harmonizing
Metadata
Among:
Contributors 4

5. Metadata Focus Group Activities
Country codes
Domain name space handling
Taxonomy / semantics / ontology
Common / Recommended Core
Quality Metadata
Feature metadata
Symbology Metadata
Crosswalk Management
Metadata Registries 5

6. Geospatial Metadata Drivers
DoD MWG
- Defense Discovery Metadata Specification (DDMS)
IC MWG
- Intelligence Information Sharing Standard (IISS) for Resource Metadata (RM): Application Profile for
Discovery (formerly known as IC Core Standard for Metadata)
- Intelligence Information Sharing Standard (IISS) for Information Security Markings (ISM): XML
Implementation (formerly known as IC Metadata Standard for Information Security Markings)
ISO/TC211
- ISO Reference Model for Imagery
- ISO 19115:2003 Geospatial Metadata
- ISO XML Schema Implementation of ISO 19115:2003
- ISO Extensions for Imagery and Gridded Data
- ISO Sensor and Data Models for Imagery and Gridded Data
ISO/IEC JTC1 SC24
- ISO/IEC Basic Image Interchange Format (BIIF)
- ISO/IEC , SEDRIS-based standards
ISO/IEC JTC1 SC29
- ISO/IEC 15444JPEG 2000 6

7. Geospatial Metadata Deliverables/Activities
DCGS MET MWG
- DCGS Block 10.2 Metadata Catalog
DGIWG MWG
- Metadata Standard for use within the Military Community
- DGIWG Metadata Register Elements
MISB MWG
- Advanced Authoring Format (AAF) Profile for Aerial Surveillance and Photogrammetry Applications (ASPA)
MGCP
- Specification of the MGCP Cell and Sub-Region Metadata
NATO AGIV MH TST
- STANAG Primary Imagery
- STANAG Secondary Imagery
- STANAG Ground Moving Target Indicator
- STANAG Digital Motion Imagery
- STANAG NATO Common Emitter Reporting Format
- STANAG NATO Standard Imagery Library Interface (NSILI)
- Crosswalks of STANAG Metadata
NGA Engineering Architecture
- Global Metadata Catalog
NGA Enterprise Engineering
- Metadata Crosswalks
- Core/Recommended Community Metadata Sets
NGA IPLs
- Core Command SPIA Metadata Tags 7

8. Geospatial Metadata Producer Deliverables/Activities
Driver
Function
Activity/Deliverable
AGI __ WG
Sensors
AF DCGS MET MWG
ISO 19115
Imagery, Sensors
Metadata Catalog; Crosswalks
ANSI/INCITS
ISO 19115
Vector, Imagery, Sensors
Standards, Profiles
DHS COI MWG
Vector, Imagery
Core metadata sets; data dictionaires; taxonomies
DGIWG MD WG
ISO 19115
Vector
Profile; Metadata Registers
MASINT __ WG
Imagery, Sensors
MISB MWG
ISO 19115, 19130
Imagery
Profiles
MGCP TG
ISO 19115, 19139
Vector
Profile; Specification
NTB
ISO 19115,
Imagery
Standard
AGIV MH TST
ISO 19115, , 19130
Imagery, Sensors
Crosswalks; Profiles; STANAGs
NGA EA
ISO 19115, , 19130, 19139; IISS for RM: Metadata; DDMS
Vector, Imagery, Sensors
Crosswalks; Profile
NGA EE
ISO 19115, , 19130, 19139; IISS for RM: Metadata; DDMS
Vector, Imagery, Sensors
Crosswalks; Core/Recommended Community Metadata Sets
NGA IPLs
ISO 19115
Imagery, Sensors
Crosswalks; Core Community Metadata Set 8

9. Core Metadata Sets

10. Mandatory/Recommended Metadata Sets for the Geospatial Community
Common Core (CC)
All Datasets
Recommended
Core (RC)
Geospatial
Common Core (CC)
All Geospatial Datasets
Geospatial
Recommended
Core (RC) V
(CC) R
(CC) I
(CC)
Specific Geospatial Datasets V
(RC) R
(RC) I
(RC)
Organizational Extensions 10

11. Country Codes

12. Country Codes: Background
Multiple standards:
ISO : Internationally ratified bi-graph and tri-graph coding scheme plus numerical values
FIPS 10-4: U.S. Federal publication identifying the two-letter country codes that ALL U.S. agencies and organizations are to use (mandated).
STANAG 1059: Directs the usage of three-letter codes based on ISO
Others: Intelligence, internal, WWW, IHO, ITU 12

13. Preferred Resolution of CC Issue
No changes to FIPS 10-4
No changes to ISO unless use of “reserved codes” is required
Build a look-up table (LUT) containing the information needed to identify Country Code standards
Establish a “Registry” of authorized country codes and maintenance authority 13

14. Domain Name Space

15. Domain Name Space Handling
Requirement
Communities need to share geospatial-enabled information
Description
Domains (communities) have different:
Data Models
Encodings (schema)
Data Presentations
Solution needed to support interoperability
Requirement cuts across organizational lines 15

16. Status Domain Name Space Handling
Technical Exchange Telecon held 14 February 2006
Primarily focusing on XML name space
DoD Metadata Registry and Clearinghouse
Base namespace URI:
Allocated GEO for Geospatial and Imagery -
Allocated INT for Intelligence -
Issues to be resolved
Is there is a need to sub-categorize GEO?
GEO is composed of GML 2.0 and other OGC packages
Separate namespace for metadata?, i.e.
Can the ISO geospatial metadata standard namespace be reused (
Recommend developing a guidance paper similar to that developed for AOP – Aerospace Operations (
Need input from organizations with practical experience 16

17. Taxonomy/semantics/ontology

18. Goals and Products
Investigate the taxonomy requirements for discovery services and metadata
Educate the community about the taxonomy requirements of discovery metadata
Develop recommendations for the taxonomies needed for discovery metadata and discovery services 18

19. Impacts The Metadata Focus Group for Taxonomy will work to
Improve the interoperability of federated discovery services
Improve the quality of discovery services
Improve the power and flexibility of discovery services 19

20. Planned Meetings
Monthly teleconferences to be held at 0900 CDT (1000 EDT) on the last Thursday of each month.
Kickoff meeting was held on 27 October 2005
The dial-up information for the next meeting is:
Toll Free number:
Conference id:
Moderator: Janet Johns, MITRE 20

21. Metadata Common Core

22. Metadata Common Core
Recommended Metadata Common Core Presented at last GWG MFG
Common Core sub-group started up, led by Shawn Silkensen
Attempted to have a introductory telecon, but there was no attendance
Call for volunteers to sign up to participate in group
Draft of Sub-Group Work Plan as been put together
Common Core is to be extended to cover:
Vector data (ex. MGCP)
Imagery data (ex , IPL Core)
Sensor data (ex ) 22

23. Geospatial Metadata Core Dictionary
Row #
Name
Definition
Conditionality
Source 1
resource title
name by which the cited resource is known
Mandatory
ISO 19115; Dublin Core
IC Core; DDMS
GMAP 2
resource reference date
reference date for the cited resource
Mandatory
ISO 19115; Dublin Core
IC Core; DDMS
GMAP 3
resource abstract
brief narrative summary of the content of the resource(s)
Mandatory
ISO 19115; Dublin Core
IC Core; DDMS
GMAP 4
metadata point of contact
party responsible for the metadata information
Mandatory
ISO 19115; GMAP 5
metadata date stamp
date that the metadata was created
Mandatory
ISO 19115; GMAP 6
dataset language
language(s) used within the dataset
Mandatory
ISO 19115; Dublin Core
IC Core; DDMS
GMAP 23

24. Crosswalks

25. Crosswalks Crosswalks currently in-work ISO 19115 – DDMS – NDMS – IC
ISO – DCGS – GMAP – GS
Common Core – IPL
AGIV STANAGs (4545, 4607, 4609, 7023)
Individual STANAG -> ISO 19115/115-2/130
ISO 19115/115-2/130 -> All STANAGs (AGIV “profile”) 25

26. Crosswalk Example 19115 – DDMS – NDMS - IC
References used for Metadata Crosswalk
DoD Discovery Metadata Specification (DDMS) Version 1.1, July 04
NATO Discovery Metadata Specification (NDMS) Version 0.1
Intelligence Community (IC) Standard for Core Metadata DED Version 1.0, 5 July 02
ISO Element Hierarchy
DDMS Element
NDMS Element
IC Element
[6] title (M)
C5.T1.Title (M)
Title
Title (M)
[8] date (M)
C5.T6.Date (O) / C6.T3.TemporalCoverage (M)
Date / Coverage
Date (M) / Coverage (M)
[8] code
C5.T2.Identifier (M)
Identifier
Identifier (M)
[8] individualName
C5.T3.Creator (M) / C5.T4.Publisher(O) / C5.T5.Contributor(O)
Creator / Publisher / Contributor
Creator / Publisher / Contributor (M)
[8] organisationName
[8] positionName
Creator / Publisher / Contributor (M)
[4] abstract (M)
C6.T5.Description (O)
Description
Description (M)
[6] keyword
C6.T12.Subject (M)
Subject
Subject (M) 26

27. Crosswalk Common Core – IPL
Core Element
Conditionality
IPL Element
resource title
Mandatory
Product Title
resource reference date
File/Product Creation Date/Time Group
security
Mandatory (DoD/IC)
Security Classification, Releasibility Instructions
identifier
BE Number / Target ID
resource originator
Producer Code
keyword
Keyword Repetitions
geographic location (bounding box)
Conditional
GEOLOC / TargetGEO 27

28. Core Vector Extensions

29. Core Vector Dataset Metadata Elements
ISO 19115:2005 prescribes a core set of metadata elements for general use
MGCP will produce vector datasets and has additional, minimum metadata elements
Core set of metadata is intended to be used for cataloguing and discovery of datasets and is the minimum set of elements
MGCP provides cataloguing metadata for the aggregation of the datasets (cell level) and the datasets (subregion level) 29

30. Core Metadata User View for a Standalone Dataset
About the Metadata
Language
Character set
Scope
Producing agency
Producing country
Metadata date stamp
Metadata standard name and version
Aggregated dataset URI
Metadata security classification markings
Data Quality Information
Horizontal accuracy evaluation method
Absolute horizontal accuracy
Vertical accuracy evaluation method
Absolute vertical accuracy
Lineage (repeat for each source)
General lineage statement
Source title
Creation date of the source
Source type
Source identifier
Source scale
Identification of the Aggregated Dataset
Aggregated dataset identifier
Creation date
Edition date
Series identifier
Description
Producing agency
Producing country
File format name, version, and specification
Dataset security classification markings
Data copyright restrictions
Language
Character Set
Geographic extent
Minimum Z value
Maximum Z value
Comments
Content
Feature catalogue name
Feature catalogue publication date
Feature catalogue included with dataset (flag)
Names of feature types in the dataset
Coordinate Reference System
CRS identifier 30

31. Quality Metadata

32. Working Group Goals
                                i.             Recommend to the GEOINT Standards Working Group, Metadata Focus Group (MFG) a standard protocol (format, process) for documenting the quality of geospatial data in GEOINT metadata. The GWG MFG may then determine next steps for incorporating the recommendations into practice across the NSG. Identify                        
Identify key relevant international, national, and/or and federal standards impacting the process by which geospatial data quality are assessed and documented, and identify any outstanding or conflicting issues for future resolution. 32

33. Quality Meetings Toll Free number: 1-877-602-8687
1.      Anticipated Frequency and Duration of Meetings: As required, to be determined by sub group. A minimum of monthly one-hour teleconferences to be held at 0900 CDT (1000 EDT) on a date to be determined. The dial- up information is as follows:
Toll Free number:
Conference id: # (Pound sign)
Moderator: Daniel Feinberg, Defense Installation Spatial Data Infrastructure (DISDI) Chief Architect, Deputy Undersecretary of Defense for Installations and Environment, Business Transformation Directorate 33

34. Feature Metadata

35. Feature Metadata Sharon Shin FGDC c/o USGS
Denver Federal Center, Building 810 P.O. Box Mail Stop 302, Room Denver, CO,
FAX 35

36. Symbology Metadata

37. Symbology Metadata
Robert Gibson EE Airborne Metadata Harmonization Team Conference Center Drive Chantilly, VA 37

38. Crosswalk Management

39. Current Utility of the Crosswalks
Crosswalks are used to provide a mapping between metadata standards
VPF, FGDC, ISO 19115, AGIV STANAGs, etc.
Currently mappings are maintained using MS-Excel
Pros:
Uses a common, well-understood application for managing the information
Easy to sort and search on the information
Cons:
Maps legacy standards to ISO 19115, which limits the ability to compare between legacy standards
Generating customized reports which could be used as configuration files for automated testing and transformation applications is difficult
Crosswalks are maintained by team of “experts” with knowledge of the standards and the spreadsheets 39

40. Put the Crosswalks to Use
Develop a simple RDBMS application (using MS-Access or MySQL) to maintain the element mappings
Reuse common mapping to ISO standard as the “binding mapping”
Pros:
Application can be made robust and simpler to use by experts in the legacy standards
Provides mechanism to produce mappings between legacy standards for validating the mappings and producing transformations between standards
Existing mappings can be imported from the spreadsheets
Cons:
Needs to be developed (unless there is an existing application) and the database needs to be populated
Access and MySQL applications are not as widely used as Excel 40

41. Registries

42. Registries for Metadata
DGIWG is developing a simple set of registers (catalogues) of information needed to support metadata use:
Extensions to the metadata standard
Units of measure
Coordinate (Spatial) reference systems
Codelists
Feature data dictionary (feature and attribute definitions)
Feature catalogue (feature and attribute associations+)
Portrayal (symbology and rules)
Quality measures
Initially, these registers will take the form of XML instance documents 42

43. Register Implementation
ISO provides a model for catalogues for Coordinate Reference System, Units of Measure, and Codelists 43

44. Supporting Catalogues Code Lists for Content Consistancy
DGIWG candidate codelists for elements implemented as CharacterString
Language used in MD_Metadata, MD_DataIdentification and MD_FeatureCatalogueDescription
Classification system used in MD_SecurityConstraints
Country used in CI_Address
Data format used in MD_Format
Others?
XML schema implementation is available in ISO 19139
Can be used for automated validation of content – not available with XML schema validation only
Will maintain the authoritative reference and the lineage of the elements within the catalogue 44

45. Points of Contact
Norm Andersen – Chair GWG- MFG
Bob Kuffel – GWG- MFG Secretariat
Hugh Bryant - Domain Space Handling
Shawn Silkensen- Common/Recommended Core
Gerald Johnston – Country Codes
Janet Johns – Taxonomy/Semantics/Ontology )
Dan Feinberg - Quality Metadata )
Sharon Shin - Feature Metadata
Robert Gibson - Symbology Metadata 45

46. Next Steps and Logistics
Next Meeting - Ft. Huachuca 26-27 Apr 2006
Special Interest Groups – normally meet telephonically monthly
Norman Andersen/NGA-NCGIS 46