APAN, Fukuoka, Japan

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NEC Aerospace Systems, Ltd.
Summary of OGC Activities
Kenji Hiraishi, PMP NEC Aerospace Systems, Ltd.
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NEC Aerospace Systems

• NEC Aeroswpace Systems, Ltd., located in
  Yokohama, Japan
• Satellite Systems, Ground based Satellite Control
  Systems
• Remote Sensing Systems
• Defense Systems, Air Traffic Control Systems
• Disaster Management Systems
• Associate member of OGC TC since Oct. 2000
• Developed WMS for RESTEC and NASDA
• WCS is under development

r
RESTECRemote Sensing Technology Center of
Japan NASDANational Space Development Agency of
Japan
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Open GIS Consortium

• OGCOpen GIS Consortium
• Established in 1994
• Over 230 organizations from US, Europe and Asia
  Pacific
• Companies, Government agencies, and Universities
• Develop publicly available geoprocissing
  specifications
• Rapid development using test beds and pilot
  projects
• Cooperating with ISO TC211 and W3C, LIF

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Sharing Geodata within and between Information
Communities
Open and interoperable geoprocessing
Natural Resources Agriculture
Business Logistics
Government
Utilities
Network computing resources with OpenGIS
interfaces
Municipal Services
Transportation
Civil Engineering
http//www.opengis.org/techno/presentations/Vancou
verIntro_files/frame.htm
Cadastre
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Open GIS Specifications
OpenGIS Abstract Specification Provide the
framework or reference model for OpenGIS
Implementation Specifications. OpenGIS
Implementation Specifications Detail the agreed
upon interfaces developed through OGC consensus
process. Use this information to build a
software product, in order to communicate with
any other software that implements the same
specification(s). Recommendation
Papers Presents an official OGC position on a
given topic, such as a draft Implementation
Specifications. Published for public review and
comment and may result in either Approved
Abstract Specifications or Approved
Implementation Specifications. Discussion
Papers Present technology issues being considered
in the WGs and SIGs of the OGC TC, to create
discussion in the geospatial information industry
on a specific topic. These papers is not to be
considered an adopted standard of any kind, and
do not represent the official position of the OGC
nor of the OGC TC.
http//www.opengis.org/ogcSpecs.htm
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Rapid development cycle(WMT Web Mapping Testbed)
Testbed meeting (MPP)
http//www.opengis.org/pressrm/summaries/20020304.
TS.MPP1.htm
http//www.opengis.org/ogcInterop.htm

• Current Initiatives
• Web Service InitiativesOWS
• Open Location ServicesOLS
• Critical Infrastructure Protection
  InitiativeCIPI
• etc

• Past Initiatives
• Military Pilot ProjectMPP
• Web Mapping Test BedWMT
• Geospartial Fusion ServicesGFSPP
• etc

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OGC Web Services Vision
http//www.opengis.org/pressrm/summaries/20011127.
TS.OWS.htm
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OWS Services Framework
Application Clients
Discovery Client
Map Viewer Client
Image Exploitation Client
Value Add Client
Sensor Web Client
Bind
Find
Encodings
GML
SLD
SensorML
Registry Services
Data Instance Registry
Service Instance Registry
Service Metadata
Obs Meas
Publish
Processing Services
Portrayal Services
Data Services
CT Service
Geocoder
Sensor Collection Service
Web Feature Service
Web Coverage Service
Web Map Service
Coverage Portrayal Service
Gaztteer
Geoperser
http//www.opengis.org/pressrm/summaries/20020813.
TS.OWS1_1.htm
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Encoding

• GML
• GML3 Under development
• STATUS OGC Implementation Specification (GML2)
• Styled Layer Descriptor (SLD)
• SLD specifies format of a map-styling language
  for producing geo-referenced maps with
  user-defined styling, using GML
• STATUS OGC Implementation Specification
• Service Metadata
• Service Metadata is an XML vocabulary comprised
  of several parts for describing different aspects
  of a service.
• STATUS OWS1.2 in development
• SensorML
• XML schema describing geometric, dynamic, and
  observational characteristics of sensor types and
  instances
• STATUS OGC discussion paper
• Observation and Measurement (OM)
• O M defines a number of terms used for
  measurements, and the relationships between them.
  
• STATUS OGC discussion paper

http//www.opengis.org/techno/implementation.htm
http//www.opengis.org/info/discussion.htm
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Registry

• Web Registry Server
• The WRS interfaces support one stop shopping
  for the registration, metadata harvesting and
  descriptor ingest, push and pill update of
  descriptors, and discovery of OGC web services
  types and instances using HTTP as the distributed
  computing platform.
• STATUS OGC Implementation Specification

http//www.opengis.org/techno/implementation.htm
http//www.opengis.org/info/discussion.htm
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OGC Web Services

• Web Mapping Service (WMS)
• GetCapabilities, GetMap, GetFeatureInfo
• STATUS OGC Implementation specification
• Web Feature Service (WFS)
• Read-only WFS GetCapabilities,
  DescribeFeatureType and GetFeature
• Transaction WFS adds Transaction and optionally
  LockFeature
• STATUS OGC Implementation Specification
• Web Coverage Service (WCS)
• GetCapabilities GetCoverage DescribeCoverageType
  
• STATUS OGC discussion paper
• Coverage Portrayal Service (CPS)
• extends WMS interface, uses the Style Layer
  Descriptor (SLD) language to support rendering of
  WCS coverages.
• STATUS OGC discussion paper

• Sensor Collection Service (SCS)
• web-enabled interface to a sensor, collection of
  sensors or sensor proxys.
• GetCoverage, GetFeature, GetObservation,
  GetCapabilities
• STATUS OGC discussion paper
• Geocoder Service
• most common type of geocoding is converting a
  street address to a geographic location.
• STATUS OGC discussion paper
• Gazetteer Service
• retrieves the known geometries for one or more
  features, given their associated well-known
  feature identifiers (text strings).
• STATUS OGC discussion paper
• Geoparser Service
• process a textual document and identify key words
  and phrases that have a spatial context.
• STATUS OGC discussion paper

http//www.opengis.org/techno/implementation.htm
http//www.opengis.org/info/discussion.htm
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WMS Service Operations(Web Map service 1.1.1)

• GetCapabilities
• Obtain service-level metadata, which is a
  machine-readable (and human-readable) description
  of the WMS's information content and acceptable
  request parameters.
• Common request of OGC Web Services
• GetMap
• Obtain a map image whose geospatial and
  dimensional parameters are well-defined.
• GetFeatureInfo (Optional)
• Ask for information about particular features
  shown on a map.

http//www.opengis.org/techno/specs/01-068r3.pdf
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WMS(Web Map Service)
Combine Population Map on Hurricane image
Internet
OGC WMS
Hurricane Image
a-map-co.com
OGC WMS
Map Image
b-maps.com
? GetCapabilities ? GetMap ? GetFeatureInfo
(Option)
User requests Maps With same spatial
Information 1) SRS, 2) BBOX, 3) WIDTH, 4)
HEIGHT With a transparent background
TRANSPARENTTRUE
http//www.opengis.org/techno/specs/01-068r3.pdf
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WFS(Web Feature Service 1.0)
TIGER/GML? HTML/JavaScript/SVG viewer
http//www.opengis.org/techno/specs/02-058.pdf
http//ip.opengis.org/cipi2/documents.htm
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WCSWeb Coverage Service 0.7
Operations - GetCapabilities - GetCoverage -
DescribeCoverageLayer (Option)
GetCapabilities response
GridCoverageLayer
ServiceMetadata
TINCoverageLayer
(http//vast.uah.edu/SensorML/)
OptionSignatures
Common properties
MultipointCoverageLayer
ContentMetadata
AbstractCoverageLayerType
SegmentedCoverageLayer
AdditionalCapabilities
SupprtedFormatList
ThiessenCoverageLayer
GeoTiff, HDF-EOS, NITF, DTED, etc.
http//www.opengis.org/techno/discussions/02-024.p
df
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WCS

• Coverage Types
• Grid Coverage
• Multi point Coverage
• TIN coverage
• Segmented Curve Coverage
• Thiessen Polygon Coverage

• Coverage Encodings
• GeoTiff
• HDF-EOS
• DTED
• NITF etc.

TINTriangulated Irregular Network
http//www.fgdc.gov/clearinghouse/sdi/Denver.ppt
http//www.opengis.org/techno/discussions/02-024.p
df
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Other WMS topics

• Cascading Map Server
• Map Server can aggregate the contents of several
  distinct map servers into one service.
• Output format conversion
• Coordinate transformation

• SLD-enable WMS
• SLD (Styled Layer Descriptor) describes
  user-defined symbolization of feature.

http//www.opengis.org/techno/specs/01-068r3.pdf
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NASDA Web Map Server
Developed by NEC Aerospace Systems Under the
contract from RESTEC
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Thank you ! K-hiraishi_at_cb.jp.nec.com