Download Geographic Information Dissemination Network in Korea

Geographic Information Dissemination
Network in Korea
2002. 11. 13
Sang-Ki Hong
Anyang University, Korea
Contents
1. History of NGIS
2. Major Achievments
3. Vision of NGIS Masterplan
4. Objectives
5. Investment Plan
6. NGIS Laws and Regulations
7. Context
8. Background
9. Conceptual Scheme
10. How to Find and Download Spatial Data
11. Pilot Project
12. Distributed Network Building
13. Main Project (1st stage)
14. Current Project
15. Dissemination Model
16. System Development
17. System Architecture
18. Policy Implications
1. History of NGIS
• 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
1. History of NGIS (cont’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 Achievements
•
•
•
•
•
•
•
•
•
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
3. Vision of NGIS Master Plan
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
4. Objectives
• 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
5. Investment Plan in 2nd Phase of NGIS
6
(unit: million dollars)
Basic geographic information (framework data)
375
GIS applications development
611
Geographic information dissemination network
20
GIS technologies development
67
GIS industry promotion
20
GIS standardization
7.5
GIS human resources development and public relations
12
R&D support
9.8
TOTAL
1,125
6. NGIS Laws and Regulations
• 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)
7
7. Context
1990
Increase in demand
Digitalization of
Society
8
1995
2000
Construction of DB
NGIS Project(1st Phase)
<Construction of National
Spatial Databases>
NGIS Project(2nd Phase)
<Utilization of Digital
Spatial Databases>
Building Geog. Info.
Dissemination Network
Increased
Need for GIS
GIS R&D
Utilization of Data
GIS DB
Construction
GIS
Applications
Construction
Transportation
Environment
Culture
Agriculture
Tourism
Etc.
8. Background
Past Situation
Attribute Data
Digital Maps
9
Network
Building
National Information
Dissemination Network
Clearinghouse
Mgmt System
Imagery
Efficient Linkage between
Demand and Supply
No Dissemination Network
Hard/Impossible to Locate
Existing Data
Duplication in
DB Building
Difficulties in
Purchasing Data
Basis for Better Utilization of
Geographic Information
Better Access and Sharing of
Geographic Information
9. Conceptual Scheme
Nat’l Geog. Information
Clearinghouse
MOCT
Gateway
Return Result
Search
10
Geodata Supplier
 Central and Local Governments,
 Public Agencies
Payment
Data Uploading
Clearinghouse
Clearinghouse
Clearinghouse
Internet
Metadata
Metadata
Metadata
Geo
Info DB
Geo
GeoInfo
InfoDB
DB
Payment
User
Electronic Payment
 Public Sector
 Private Sector
Download
Payment Gateway
10. How to Find and Download Spatial Data
1. Connect to
Homepage
2. Search Data
4. View Metadata
3. View Search
Result
11
6. Purchase
5. Preview Map
7. Download Data
11. Pilot Project
Project Period
12
Contents
2000. 7. 12 - 2001. 6. 7
Building Centralized
Dissemination Network
Spatial Extent
NGIC(MOCT)
Development of
Metadata Standard
Construction of
Metadata DB
Development of
Metadata Editor
R&D
National Clearinghouse
12. Distributed Network Building
User
National
Clearinghouse
User
CH
Node
Data
Supplier
Data
Supplier
Data
Supplier
(Pilot Project)
Data
Supplier
Data
Supplier
13
National
Clearinghouse
CH
Node
Data
Supplier
CH
Node
Data
Supplier
Data
Supplier
( Main Project )
13. Main Project (1st stage)
Project Period
14
Contents
2001. 8. 1 - 2002. 6. 26
Building Clearinghouse
Node Network
Spatial Extent
CH Node
(Incheon)
Expansion of existing
system
NGIC(MOCT)
CH Node (NGI)
CH Node
(Daegu)
Construction of
Metadata DB
Development of
Portal Site
R&D
National Clearinghouse
CH Node
14. Current Project
Project Period
Contents
2002. 9. 30 - 2003. 8. 25
Spatial Extent
CH Node
(Incheon)
15
Building Integrated
Dissemination Network
Expansion of existing
system
NGIC(MOCT)
Construction of
Metadata DB
CH Node (NGI)
New CH Node
(Daejeon)
New CH Node
(Gwangju)
National Clearinghouse
Existing CH Node
CH Node
(Daegu)
New CH Node
(Busan)
Mgmt of existing
system
R&D Support
Public Relations
New CH Node
15. Dissemination Model
16
Types of Geographic Information Dissemination Model
File-based
Spatial DB-based
Goal
Public Access to Geodata Files
(G2C Service)
Geodata Sharing
(G2G Service)
Techno
-logies
Catalog Service / DRM
Security / Electronic Payment
OGC Spec. Simple Feature
Component S/W
Network
Internet
Intranet
Service
Geodata File Search
And Download
Spatial DB Layer
Sharing among orgs.
Data
Store
CH: Mgmt, Stat. Data
CH Node: Geodata Files, Metadata
CH Node: Metadata
Spatial DB Server: Spatial DB
Use
User’s GIS S/W to use
Geodata files
Display thru Web Browser
Simple and Efficient
No restrictions on Data format
Advanced sharing technology
Complicated System
Characteristics
Integrated Model
• Integration of file and DB-based models
•
•
•
•
Application of OGC Standard
Component-based S/W
Electronic Payment
Security Technology
• Internet
• File and DB service
• Expandable system architecture
• CH: Mgmt, Stat. Data
• CH Node: Geodata Files, Metadata, Spatial DB
• Spatial DB Access thru Map Browser and
Geodata File download
• Users can choose the type of desired service
15. Dissemination Model (cont’d)
17
Technologies Involved
Catalog Service
Standard
(Z39.50)
•Spatial DB Engine
•DP(Data Provider)
DP (Data Provider)
- Access to Spatial DB and Download
Metadata
Search
National Clearinghouse
XML
Metadata
Registration
Clearinghouse Nodes
Geodata
Download
Catalog Service
- Standard for Metadata Search
Geodata Supplier
Simple Feature Spec.
- Used for Map Browsing Function
XML
- Used in Metadata Editor
•DRM
•SSL
Active X
- Client Interface Technology that
supports GIS Functions in Web Browser
PKI
Authentication
• Active X
• Simple Feature
Spec.
Elec.
Payment
KFTC
Spatial DBMS for GIS
- Mgmt of Spatial and Attribute Data,
Spatial Query and Operation
User
DRM (Digital Right Management)
- Encryption for transmitting geodata
PKI/SSL
- Encryption for Electronic Payment
15. Dissemination Model (cont’d)
18
Detailed Structure of Integrated Dissemination Model
Clearinghouse Node(Spatial DB + Files)
File-only DB Server
Web Service
Spatial DB Server
: Vector, Raster
Shp Spatial DB
DP(Data Provider)
• File Download
Internet
(TCP/IP)
• WKB Type
(Well-Known Binary)
Map Browser
Information User
(Simple Feature Spec.)
Shp
DXF
Geotiff
Local Store(Geodata Files)
• WKB to Shp
Library
• Shp DP
• DXF DP(Library)
• GeoTiff DP(Library)
16. System Development
19
Data Flow
History Info
List of Registered Geodata
•
•
•
Mgmt Data
CH Node List
Gov. Geodata
History Info
List of Registered Geodata
NGIC
(NGIS Div. In MOCT)
•
•
•
•
•
Metadata
Geodata Files
CH Node
(File-based)
Geodata Files
Metadata
Geodata Files
Metadata
Geodata Users
•
•
•
Metadata
Geodata Files
Spatial DB
Geodata Suppliers
Spatial DB Layer
Metadata
Metadata
Geodata Files
Spatial DB
CH Node
(Spatial DB+Files)
Spatial DB Layer
Metadata
16. System Development (cont’d)
20
Detailed Design
Registration and Mgmt of Geodata
Spatial DB(shp)
NGIC
Data
Conversion
Module
Map Browser Design
Spatial DB
CH Node Type A
Metadata
Map Browser
Geodata
Type
Files
DBMS
(shp/dxf)
Map Display
OGIS
Geometry
Data Access
Data Conversion
Meta-data
Supplier
Auth.
Register
CH Node Type B
WKB
Data Provider A
Geodata Registration
and Mgmt Service
dxf
shp
Data Provider B
Data Provider C
DB - B
DB - C
Metadata Editing
DB - A
16. System Development (cont’d)
21
Application Functions
User
National Clearinghouse
 User Registration
 Log in
Gateway
User Registration
Metadata query
Search Results
Statistics
 Geodata
Download
 Purchase
 Elec. Payment
CH Nodes
Map Browsing
Geodata Purchase
KFTC
(Payment GateWay)
Geodata Supplier
 Metadata
 Geodata
Metadata Search
Approval of Geodata
Registration
 Supplier Approval
Geodata/Metadata
Registration
Geodata Upload
17. System Architecture
National Clearinghouse
DB Server
HP9000L2000
440MHz×4
RAM 2GB
HDD 200GB
Web Server
HP9000L1000
440MHz×2
RAM 1GB
HDD 36GB
IDS Server
DELL PE4400
933MHz×2
RAM 1GB
HDD 54GB
SMS(Net) Server
DELL PE4400
933MHz ×2
RAM 1GB
HDD 54GB
Staff NoteBook
CSU
Printer
Geodata
user
Geodata
Supplier
KFTC
User PC
Switching
Hub
Satelite1955-s801
Pentium 4 2.2MHz
RAM 512MB
HDD 40GB
Plotter
SMS Server
DELL PE4400
933MHz ×2
RAM 1GB
HDD 72GB
22
Fire Wall Server
SUN Ultra60
450MHz×2
RAM 512MB
HDD 18GB
Router
INTERNET
CSU
Router
Fire Wall Server
IBM x232
1.4GHz×2
RAM 512MB
HDD 18.2GB
CSU
Router
Switch Hub
DB Server
IBM 620 - 6F1
600MHz×2
RAM 1GB
HDD 219GB
Web Server
IBM x250
700MHz×2
RAM 1GB
HDD 216GB
New CH Nodes(3 Sites)
Fire Wall Server
SUN Ultra60
450MHz×2
RAM 512MB
HDD 18GB
CSU
Fire Wall
Server
SUN Ultra10
440MHz
RAM 1GB
HDD 18GB
Router
Switch Hub
DB Server
HP9000L2000
440MHz×2
RAM 1GB
HDD 219GB*
Web Server
HP9000A500
440MHz ×2
RAM 1GB
HDD 36GB
Existing CH Node
(NGI, Daegu)
Switch Hub
DB Server
HP NS
Lxr8500
700MHz×2
RAM 1GB
HDD 54GB
Web Server
HP NS
Lxr8500
700MHz×2
RAM 1GB
HDD 54GB
GIS Server
DELL PE4400
933MHz×2
RAM 1GB
HDD 54GB
Existing CH Node (Incheon)
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
Thank You