development of open gis component based on the simple ......•19125-1 part 1: common architecture...

ISO/TC211 Standards in Action

Open GIS Component Based on the

Simple Feature Geometry

Adelaide, Australia, October 24, 2001

Haeock Choi, Kwangsoo Kim, and Jonghun Lee

GIS Research Team

Spatial Information Technology Center

ETRI/CSRL

Republic of KOREA

ISO/TC211 Standards in Action Adelaide, October 24, 2001

Electronics & Telecommunications Research Institute

ETRI(Electronics & Telecommunication Research Institute)

• Established in 1976

• A non-profit government-funded research organization

• About 2000 researchers

• Vision : Being the leader in 3T’s : IT, BT, NT

• Missions

– To create innovative technologies and develop knowledge-driven

industries

– To research for standardization and security of technical information

– To provide technical guidance in the IT field and to cultivate nation’s

technology leaders

• Organization

– 6 Labs., 2 Divisions, 1 Center, 2 Depts., 1 Annex



Network Research Laboratory

ETRI – 7 Research Organizations

Focus on Basic Research

Focus on National R&D Projects

Focus on Technology Transfer

Information Security Research Division

Basic Research Laboratory

Radio & Broadcasting Research LaboratoryIMT-2000 System Department Division

Computer & Software Research Laboratory

Advanced-Electronics Research Laboratory

Information Technology Management Research Institute



Research Topics related to Spatial Information

• Spatial Information Technology Center in CSRL

– GIS Research Team

– RS Research Team

– 4S Application Research Team

• Current Research Topics of GIS Research Team

– Open GIS Component Technology

– 3D GIS Technology

– LBS Technology



Background :Why Component Software?

• Software crisis in the age of information

– Lack of Interoperability

– Lack of Reusability

Information Software TechnologySoftware

Crisis

Component Software is a Solution



Open GIS Component

Open GIS ComponentGIS STANDARDS

GIS TECHNOLOGY

COMPONENT



OGC

• The OGC is an open forum for the GIS community to contribute to the interoperability in geodata and operations(Buehler et al, 1996)

• Since 1994

• More than 20 SIGs /WGs

• 16 Abstract Specifications

– Central themes

• Sharing Geospatial Information

• Providing Geospatial Services

• 7 Implementation Specifications

• Legal liaison with ISO/TC211



ISO/TC211 and OGC

• Cooperative agreements

– ISO 19125 Geographic information – Simple feature

access is based on the OGC OpenGIS Simple Features

Specification

• 19125-1 Part 1: Common architecture

• 19125-2 Part 2: SQL option

• 19125-3 Part 3: COM/OLE option

– ISO 19128 Geographic information – Web Map server

interface

• OGC Web Map Server Specification

– ISO 19132,19133,19134 Location Based Service

• OGC OpenLS Architecture



Simple Features Specification for OLE COM

• OLE/COM based proposal

• 3 Main Themes

– Data Access Architecture

• OLE DB based Data Providers and Data Consumers(ADO)

– Geometry Object Model

• Geodata modeling

• Geodata Operations

– Spatial Reference System Object Model

• Datum Definition

• Transformations

• Projections

• Component Specifications



Open GIS Component Architecture – ETRI Model

Application ComponentBusiness Process of Local Government

Kernel(MapBase®)

Component

Spatial Modeling, Operations,

Query, Analysis, Mapping, and

Web Services

Data Provider Component

Extended OLE DB Interface for Sharing Spatial

Information

Clearinghouse

Component

Discovery and Access of

Spatial Information under

Networks

OpenGIS Simple Features

Specificationfor OLE/COM

OpenGIS Catalog Interface Implementation

Specification

OpenGIS Web Map Server

Interface Specification

OpenGIS Implementation

Specification:Grid Coverage

OpenGIS Coordinate

Transformation Service

Implementation Specification:



Data Provider Component

Data StoreSDE, MGE, ZEUS, GEOMania,

MapInfo, SmallWorld, SQL, Shape

Extend OLE DB Data Provider

OLE DB Interface

MapBase® or Applications

Geometry, Attributes, Metadata

Data Access Model of Open GIS Simple Feature

Specification for

OLE/COM

Simple Feature

Geometry Model of Open GIS Simple Feature

Specification for

OLE/COM



MapBase® Component

Spatial Analysis,

Web Map Service

Spatial Modeling, SRS,

Spatial Operations

Spatial Data Access, Mapping, User Interface

Spatial Editing, Application Service

NetworkAnalysis

Component Geometry+Component

3D Analysis Component

GeometryComponent

SpatialReference

SystemComponent

OpenGIS Simple Features

Specificationfor OLE/COM

Web MapService

Component

OpenGIS Web Map Server

Interface Specification

ApplicationService

Components

Editor Component

MapDraw Component

MapBase

ActiveX Control

MbDAO Component

Data

Provider

Components

Grid Analysis

Component

OpenGIS Implementation

Specification:Grid Coverage

OpenGIS Implementation Specification:Coordinate

Transformation



Data Provider

Spatial Data Interoperability

SDE

Data Provider

ZEUS

Data Provider

Shape

. . . . .

. . . . .

Applications

MapBase



Case Study : KSDI

• KSDI(Korea Spatial Data Infrastructure)

• Interoperable geospatial data processing system used among local governments and related organizations

• Conforms Standards

– ISO 19115 Geographic information – Metadata

– ISO 19125 Geographic information – Simple Feature Access

– OGC OpenGIS Catalog Interface Implementation Specification

• Participants

– ETRI, NCA, Ssangyong, KTData, KTIT, PointI



KSDI – Network Configuration

Node(Local

Government)Administration

Server

Gateway Server

Router

Node

(Communicat

ion)

GIS Server

GIS Server

GIS Server GIS Server GIS Server

Authorized User

Internet

CSU CSU

CSU CSU CSU

CSU

Firewall

Private Network

Seoul City Incheon City Suwon City

Sungnam City KT(Korea Telecom)NCA(National Computerization Agency)

SwitchingHub



KSDI - Data Flow

3. Request Metadata

5. Send Search results

2. Register Metadata

Spatial Data Transmission Network Metadata Search Network

Data ProviderCatalog client

HTTP

Catalog Server

Metadata Editor

HTTPGIS

DB

GIS

DB

Metadata

DB

Metadata

DB

Node Catalog

DB

GatewayAuthorized

User

Node ManagerCreator



KSDI Architecture

Parcel

Suwon City

GIS 서버

Parcel

Incheon City

GIS 서버

Parcel

Sungnam City

GIS 서버

Private

Network

Request

Reply

BaseMapDB CommunicationDB

KT

GIS DB Metadata DB

Gateway

Home page

www

Parcel Road Drainage Water

Seoul City

Node UserDB

Web Browser

WindowsData Provider

Component

OGC standard inteace

GDB-specific data

Map Base

Component

Renderer

Authorized

User

NCALocal Government Node

Metadata DB

Operations

Gateway

Administrator Node

Administrator

Spatial DB

Administrator

Internet

GIS DB



KSDI – GIIS(Geospatial Information Interoperability System)

Authorized

User

GIIS

MapBase® Component

CatalogClient.dll

Data Provider

Gateway

NodeInfoSender.html

CatalogClient.dll

Web

Server

Node Catalog

DB

Node

CatalogServer.asp

CatalogServer.dll

Web

Server

Metadata

DB

Spatial DB Server

GIS DB

GIS DB

Spatial DB Server

Windows

Data Provider

Software Download

User Registration

User Authorization,

Node Catalog Requirement

Node Catalog

Data

Req

uirem

ent

Data

Tra

nsm

ission

Data

Req

uirem

ent

Data

Tra

nsm

ission

Data Requirement

Data Reply

Spatial DB

AdministratorNode

Administrator

Gateway

Administrator



Demonstrations

• KSDI – Web based Map Service

• KSDI – GIIS : Windows Application Service



Conclusion

• Open Architecture ensuring the Interoperability

and Reusability

• Conforming the Standards

• Component Software

• Future works

– Extending Simple Feature geometry to Complex

Feature geometry with additional information

– Integration of LBS technology into Mobile Service

– Open SIM(Spatial Information Management) enabling

L-Commerce, Spatial ERP, gCRM etc.



www.etri.re.kr

Thank you for your attention!

ETRI in Daeduk Valley

development of open gis component based on the simple ......•19125-1 part 1: common architecture...

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