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Sang-Ki HongSang-Ki HongAnyang University, KoreaAnyang University, Korea
Geographic Information Dissemination Geographic Information Dissemination Network in KoreaNetwork in Korea
Geographic Information Dissemination Geographic Information Dissemination Network in KoreaNetwork in Korea
2002. 11. 13 2002. 11. 13
ContentsContents
1. History of NGIS1. History of NGIS
2. Major Achievments2. Major Achievments
3. Vision of NGIS Masterplan3. Vision of NGIS Masterplan
4. Objectives4. Objectives
5. Investment Plan5. Investment Plan
6. NGIS Laws and Regulations6. NGIS Laws and Regulations
7. Context7. Context
8. Background8. Background
9. Conceptual Scheme9. Conceptual Scheme
10. How to Find and Download Spatial Data10. How to Find and Download Spatial Data
11. Pilot Project11. Pilot Project
12. Distributed Network Building12. Distributed Network Building
13. Main Project (113. Main Project (1stst stage) stage)
14. Current Project14. Current Project
15. Dissemination Model15. Dissemination Model
16. System Development16. System Development
17. System Architecture17. System Architecture
18. Policy Implications18. Policy Implications
• Early 1990s: Development of various GIS databases begun
• Mid 1990s: Underground gas explosion accidents in Seoul and Daegu accelerated GIS development
• May 1995: 1st NGIS Master Plan established
1. History of NGIS1. History of NGIS 1
1. History of NGIS (cont’dcont’d) 2
• July 2000: NGIS Act and its Enforcement Decree enacted
• October 2000: 2nd NGIS Master Plan (2001~2005) established
• December 2000: 1st NGIS Master Plan completed
• January 2001: Implementation of 2nd NGIS Master Plan started
2. Major AchievementsAchievements 3
• Completion of the National Digital Base Map
• Construction of various Thematic maps
• Construction of the Underground Facility Database
• Construction of Cadastral Map
• Development of the Applications in Public Sector
• Development of core GIS Technologies
• Human Resources Development
• Standardization
• Support for GIS Research and Development
3. Vision of NGIS MasterMaster Plan 4
For the fast and convenient access to National
Spatial Information, the “Digital National Land”
shall be achieved by the construction of National
Spatial Data Infrastructure
4. ObjectivesObjectives 5
• Establish the basis for Digital National Land • Make geographic information available on the
internet for use by all people• Develop core technology and promote GIS
industry• Continue improvement of information
infrastructure
5. InvestmentInvestment Plan in 2nd Phase of NGIS 6
Basic geographic information (framework data) Basic geographic information (framework data) 375 375
GIS applications development GIS applications development 611 611
Geographic information dissemination network Geographic information dissemination network 20 20
GIS technologies development GIS technologies development 67 67
GIS industry promotion GIS industry promotion 20 20
GIS standardization GIS standardization 7.5 7.5
GIS human resources development and public relations GIS human resources development and public relations 12 12
R&D support R&D support 9.8 9.8
TOTAL TOTAL 1,125 1,125
(unit: million dollars)(unit: million dollars)
6. NGIS Laws and Regulations 7
• Purpose (Article 1)
• NGIS Master Plan (Article 5)
• NGIS Committee (Article 8)
• Establishment of NGIS Infrastructure (Chapter 3)
• Construction and Management (Chapter 4)
• Utilization and Distribution (Chapter 5)
8
1995 20001990
Increase in demand Construction of DBConstruction of DB Utilization of Utilization of
DataData
NGIS Project(1NGIS Project(1stst Phase) Phase)<Construction of National<Construction of National
Spatial Databases>Spatial Databases>
NGIS Project(1NGIS Project(1stst Phase) Phase)<Construction of National<Construction of National
Spatial Databases>Spatial Databases>
NGIS Project(2nd Phase)NGIS Project(2nd Phase)<Utilization of Digital<Utilization of DigitalSpatial Databases>Spatial Databases>
Building Geog. Info. Building Geog. Info. Dissemination NetworkDissemination Network
ConstructionConstruction
Transporta-Transporta-tiontion
ConstructionConstruction
Transporta-Transporta-tiontion
EnvironmentEnvironment
AgricultureAgriculture
EnvironmentEnvironment
AgricultureAgriculture
CultureCulture
TourismTourism
CultureCulture
TourismTourismEtc.Etc.Etc.Etc.
IncreasedIncreasedNeed for GISNeed for GIS
IncreasedIncreasedNeed for GISNeed for GIS
GIS R&DGIS R&DGIS R&DGIS R&D
Digitalization ofDigitalization ofSocietySociety
Digitalization ofDigitalization ofSocietySociety
GIS DBGIS DBConstructionConstruction
GISGISApplicationsApplications
7. ContextContext
Attribute Data Digital Maps Imagery
Past Situation Past Situation
No Dissemination NetworkNo Dissemination Network
Hard/Impossible to LocateExisting Data
Hard/Impossible to LocateExisting Data
Duplication inDB Building
Duplication inDB Building
Difficulties inPurchasing Data
Difficulties inPurchasing Data
National InformationNational InformationDissemination NetworkDissemination Network
ClearinghouseClearinghouse Mgmt SystemMgmt System
NetworkBuilding
Efficient Linkage betweenDemand and Supply
Basis for Better Utilization ofGeographic Information
Better Access and Sharing ofGeographic Information
98. BackgroundBackground
9. Conceptual Scheme 10
ClearinghouseClearinghouse
Geo Info DBMetadata
ClearinghouseClearinghouse
Geo Info DBMetadata
Payment GatewayPayment Gateway
InternetInternet
Public Sector Private Sector
UserUser
Download
Nat’l Geog. Information Nat’l Geog. Information ClearinghouseClearinghouse
MOCTGateway
Central and Local Governments, Public Agencies
Geodata SupplierGeodata SupplierReturn Result
Search
Data UploadingPayment
Electronic Payment
Payment
ClearinghouseClearinghouse
Geo Info DBMetadata
10. How to Find and Download Spatial Data 11
2. Search Data2. Search Data3. View Search3. View Search
ResultResult6. Purchase 6. Purchase
1. Connect to 1. Connect to HomepageHomepage
4. View Metadata4. View Metadata 5. Preview Map5. Preview Map7. Download Data7. Download Data
11. Pilot ProjectProject 12
Building CentralizedBuilding CentralizedDissemination NetworkDissemination Network
Construction ofConstruction ofMetadata DBMetadata DB
Development ofDevelopment of Metadata EditorMetadata Editor
R&DR&D
Spatial ExtentSpatial Extent Spatial ExtentSpatial Extent
National ClearinghouseNational Clearinghouse
2000. 7. 12 - 2001. 6. 72000. 7. 12 - 2001. 6. 7
Project PeriodProject Period Project PeriodProject Period ContentsContents ContentsContents
NGIC(MOCT)NGIC(MOCT)Development ofDevelopment of
Metadata StandardMetadata Standard
CHCHNodeNode
CHCHNodeNode
CHCHNodeNode
CHCHNodeNode
CHCHNodeNode
CHCHNodeNode
(Pilot Project) ( Main Project )
UserUser
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
UserUser NationalNationalClearinghouseClearinghouse
NationalNationalClearinghouseClearinghouse
NationalNationalClearinghouseClearinghouse
NationalNationalClearinghouseClearinghouse
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
DataDataSupplierSupplier
12. DistributedDistributed Network Building 13
13. Main Project Project (1st stage) 14
Building ClearinghouseBuilding ClearinghouseNode NetworkNode Network
Expansion of existingExpansion of existing systemsystem
Construction ofConstruction ofMetadata DBMetadata DB
Development ofDevelopment ofPortal SitePortal Site
R&DR&D
Spatial ExtentSpatial Extent Spatial ExtentSpatial Extent
National ClearinghouseNational ClearinghouseCH NodeCH Node
2001. 8. 1 - 2002. 6. 262001. 8. 1 - 2002. 6. 26
Project PeriodProject Period Project PeriodProject Period ContentsContents ContentsContents
NGIC(MOCT)NGIC(MOCT)
CH Node (NGI)CH Node (NGI)
CH Node(Daegu)CH Node(Daegu)
CH Node(Incheon)CH Node
(Incheon)
14. Current Project 15
Building IntegratedBuilding IntegratedDissemination NetworkDissemination Network
Expansion of existingExpansion of existing systemsystem
Construction ofConstruction ofMetadata DBMetadata DB
Mgmt of existingMgmt of existingsystemsystem
R&D SupportR&D Support
Public RelationsPublic Relations
Spatial ExtentSpatial Extent Spatial ExtentSpatial Extent
National ClearinghouseNational ClearinghouseExisting CH
NodeExisting CH
NodeNew CH NodeNew CH Node
2002. 9. 30 - 2003. 8. 252002. 9. 30 - 2003. 8. 25
Project PeriodProject Period Project PeriodProject Period ContentsContents ContentsContents
NGIC(MOCT)NGIC(MOCT)
CH Node (NGI)CH Node (NGI)
CH Node(Daegu)CH Node(Daegu)
CH Node(Incheon)CH Node
(Incheon)
New CH Node(Daejeon)
New CH Node(Daejeon)
New CH Node(Gwangju)
New CH Node(Gwangju)
New CH Node(Busan)New CH Node(Busan)
15. DisseminationDissemination Model 16
Types of Geographic Information Dissemination ModelTypes of Geographic Information Dissemination Model
Integrated ModelIntegrated Model
• Integration of file and DB-based modelsIntegration of file and DB-based modelsPublic Access to Geodata Files
(G2C Service)Geodata SharingGeodata Sharing(G2G Service)(G2G Service)
• Application of OGC StandardApplication of OGC Standard• Component-based S/WComponent-based S/W• Electronic PaymentElectronic Payment• Security TechnologySecurity Technology
Catalog Service / DRMSecurity / Electronic Payment
OGC Spec. Simple FeatureOGC Spec. Simple FeatureComponent S/WComponent S/W
• InternetInternetInternet IntranetIntranet
• File and DB serviceFile and DB service• Expandable system architectureExpandable system architecture
Geodata File SearchAnd Download
Spatial DB LayerSpatial DB LayerSharing among orgs.Sharing among orgs.
• CH: CH: Mgmt, Stat. Data • CH Node: Geodata Files, Metadata, Spatial DB
CH: Mgmt, Stat. DataCH Node: Geodata Files, Metadata
CH Node: MetadataCH Node: MetadataSpatial DB Server: Spatial DBSpatial DB Server: Spatial DB
• Spatial DB Access thru Map Browser andSpatial DB Access thru Map Browser and Geodata File downloadGeodata File download
User’s GIS S/W to useGeodata files Display thru Web BrowserDisplay thru Web Browser
• Users can choose the type of desired serviceUsers can choose the type of desired serviceSimple and EfficientNo restrictions on Data format
Advanced sharing technologyAdvanced sharing technologyComplicated SystemComplicated System
GoalGoal
TechnoTechno-logies-logies
NetworkNetwork
ServiceService
Data Data StoreStore
UseUse
Charac-Charac-
teristicsteristics
Spatial DB-basedSpatial DB-basedFile-basedFile-based
15. DisseminationDissemination Model (cont’d) 17
Technologies InvolvedTechnologies Involved
KFTCKFTC
GeodataDownloadGeodata
Download
Metadata Registrati
on
Metadata Registrati
on
Elec. Payment
Elec. Payment
National ClearinghouseNational Clearinghouse Clearinghouse NodesClearinghouse Nodes
Metadata Search
Metadata Search
Geodata SupplierGeodata Supplier
UserUser
•Active X Active X •Simple Feature Simple Feature Spec. Spec.
Catalog Catalog Service Service Standard Standard (Z39.50)(Z39.50)
•Spatial DB Spatial DB EngineEngine•DP(Data DP(Data Provider) Provider)
•DRMDRM•SSLSSL
XMLXML
PKIPKIAuthenticatioAuthenticatio
nn
PKI/SSLPKI/SSL - Encryption for Electronic - Encryption for Electronic
PaymentPayment
DRM (Digital Right Management)DRM (Digital Right Management) - Encryption for transmitting geodata- Encryption for transmitting geodata
Active X Active X - Client Interface Technology - Client Interface Technology that supports GIS Functions in that supports GIS Functions in Web BrowserWeb Browser
XMLXML - Used in Metadata Editor- Used in Metadata Editor
Simple Feature Spec. Simple Feature Spec. - Used for Map Browsing - Used for Map Browsing FunctionFunction
Catalog Service Catalog Service - Standard for Metadata Search- Standard for Metadata Search
DP (Data Provider) DP (Data Provider) - Access to Spatial DB and - Access to Spatial DB and DownloadDownload
Spatial DBMS for GISSpatial DBMS for GIS - Mgmt of Spatial and Attribute - Mgmt of Spatial and Attribute
Data, Data, Spatial Query and OperationSpatial Query and Operation
15. DisseminationDissemination Model (cont’d) 18
Detailed Structure of Integrated Dissemination ModelDetailed Structure of Integrated Dissemination Model
Spatial DB ServerSpatial DB Server: Vector, Raster: Vector, RasterFile-only DB ServerFile-only DB Server
• WKB Type (Well-Known Binary)
Clearinghouse Node(Spatial DB + Files)Clearinghouse Node(Spatial DB + Files)
• WKB to Shp Library
Information User
Local Store(Geodata Files)Local Store(Geodata Files)
• File Download
Web ServiceWeb Service
Map BrowserMap Browser(Simple Feature Spec.)(Simple Feature Spec.)
ShpShpDXFDXF
GeotiffGeotiff
Spatial DBSpatial DB
Internet(TCP/IP)
ShpShpDPDP(Data Provider)(Data Provider)
• Shp DP • DXF DP(Library)• GeoTiff DP(Library)
16. System DevelopmentDevelopment 19
Data FlowData Flow
CH NodeCH Node(Spatial DB+Files)(Spatial DB+Files)
NGIC NGIC (NGIS Div. In MOCT)(NGIS Div. In MOCT)
CH NodeCH Node(File-based)(File-based) Geodata UsersGeodata Users
Geodata SuppliersGeodata Suppliers
• MetadataMetadata• Geodata FilesGeodata Files
History InfoList of Registered Geodata
History InfoList of Registered Geodata
History InfoList of Registered Geodata
History InfoList of Registered Geodata
Spatial DB LayerMetadata
Spatial DB LayerMetadata
Spatial DB LayerMetadata
Spatial DB LayerMetadata
Geodata FilesMetadata
Geodata FilesMetadata
Geodata FilesMetadata
Geodata FilesMetadata
• MetadataMetadata• Geodata Files Geodata Files • Spatial DBSpatial DB
• Mgmt DataMgmt Data• CH Node ListCH Node List• Gov. GeodataGov. Geodata
• MetadataMetadata• Geodata FilesGeodata Files• Spatial DB Spatial DB
16. System DevelopmentDevelopment (cont’d) 20
Detailed DesignDetailed Design
Registration and Mgmt of GeodataRegistration and Mgmt of GeodataRegistration and Mgmt of GeodataRegistration and Mgmt of Geodata
Map BrowserMap Browser
OGISOGISGeometryGeometry
Data Provider AData Provider A
DB - ADB - A
Data Provider BData Provider B Data Provider CData Provider C
DB - BDB - B DB - CDB - C
WKB
Map DisplayMap Display
Data AccessData Access
Data ConversionData Conversion
Data Data Conversion Conversion
ModuleModule
Data Data Conversion Conversion
ModuleModule
CH Node Type BCH Node Type B
NGICNGICNGICNGIC
Supplier Auth.
Meta-Meta-datadata
Spatial Spatial DBDB
Meta-Meta-datadata
DBMSDBMS(shp/dxf)(shp/dxf)
CH Node Type ACH Node Type A
Files
Spatial DB(shp)
Geodata Registration Geodata Registration and Mgmt Serviceand Mgmt Service
Register
dxf
shp
Metadata Editing
Geodata Geodata TypeType
Geodata Geodata TypeType
Map Browser DesignMap Browser DesignMap Browser DesignMap Browser Design
16. System DevelopmentDevelopment (cont’d) 21
Application FunctionsApplication Functions
National ClearinghouseNational Clearinghouse
User Registration Log in User Registration Log in
Metadata Geodata Metadata Geodata
Supplier Approval Supplier Approval
Search ResultsStatisticsSearch ResultsStatistics
Geodata Download Geodata Download
Approval Approval
Metadata queryMetadata query
Gateway User Registration
UserUser
Map Browsing Geodata Purchase
CH NodesCH Nodes
Metadata Search Approval of Geodata Registration
Geodata SupplierGeodata Supplier
Geodata/Metadata Registration
Geodata Upload
KFTCKFTC(Payment GateWay)(Payment GateWay)
KFTCKFTC(Payment GateWay)(Payment GateWay)
Purchase Elec. Payment Purchase Elec. Payment
17. System ArchitectureArchitecture 22
I N T E R N E TI N T E R N E T
National ClearinghouseNational Clearinghouse
New CH Nodes(3 Sites)New CH Nodes(3 Sites) Existing CH Node(NGI, Daegu)
Existing CH Node(NGI, Daegu) Existing CH Node (Incheon)Existing CH Node (Incheon)
Geodatauser
Geodatauser
GeodataSupplierGeodataSupplier KFTCKFTCWeb ServerWeb Server
440MHz×2440MHz×2
RAM 1GBRAM 1GB
DB ServerDB Server
HP9000L2000HP9000L2000
440MHz×4440MHz×4
RAM 2GBRAM 2GB
HDD 18GBHDD 18GB
SUN Ultra60SUN Ultra60Fire Wall ServerFire Wall Server
450MHz×2450MHz×2
RAM 512MBRAM 512MBPlotterCSU Router
Switching Hub
Printer
IDS ServerIDS Server
DELL PE4400DELL PE4400
933MHz×2933MHz×2
RAM 1GBRAM 1GBUser PC
Staff NoteBookStaff NoteBook
Satelite1955-s801Satelite1955-s801
Pentium 4 2.2MHzPentium 4 2.2MHz
RAM 512MBRAM 512MB
SMS(Net) ServerSMS(Net) Server
DELL PE4400DELL PE4400
933MHz ×2933MHz ×2
RAM 1GBRAM 1GB
HDD 18GB
SUN Ultra10
Fire Wall Server
440MHz
RAM 1GB
SMS ServerSMS Server
DELL PE4400DELL PE4400
933MHz ×2933MHz ×2
RAM 1GBRAM 1GB
Fire Wall Server
SUN Ultra60
450MHz×2
RAM 512MB
CSUCSU CSU
RouterRouter Router
Switch HubSwitch HubSwitch Hub
Web Server
HP NS Lxr8500
700MHz×2
RAM 1GB
GIS Server
DELL PE4400
933MHz×2
RAM 1GB
DB Server
HP NS Lxr8500
700MHz×2
RAM 1GBHDD 36GB
HP9000A500
Web Server
440MHz ×2
RAM 1GBHDD 219GB*
HP9000L2000
DB Server
440MHz×2
RAM 1GB
DB Server
IBM 620 - 6F1
600MHz×2
RAM 1GB
Web Server
IBM x250
700MHz×2
RAM 1GB
Fire Wall Server
IBM x232
1.4GHz×2
RAM 512MB
18. Policy Implications 23
• Commitment and investment are necessary for successful implementation of the dissemination network
• Better-informed and timely decision can be made through the use of this network
• Main problem: setting up an environment for information sharing, i.e., policy principles need to be set up
• Other problems such as pricing of data, copyrights, security concerns need to be clarified