1 Introduction and Demonstration of TGOS Portal Yao-Chun Chuang Yao-Chun Chuang Officer, Information Center Ministry of the Interior, ROC Ministry of the Interior, ROC May, 2009

2Contents  TGOS Hardware Framework  TGOS Functional Structure  Introduction to TGOS Website

3 TGOS Hardware Framework NLB+HA (Network Load Balabce + High Availability) HA (High Availability) TGOS Web Server #1 (ArcIMS 9.2) TGOS Web Server #2 (ArcIMS 9.2) Database Server (Oracle 、 ArcSDE 9.2) Firewall Load Balance Backup Database (Oracle 、 ArcSDE 9.2)

4 T-GOS Function Structure

5 Function Structure (for general users)

6 Function Structure (for NGIS management )

7 Introduction to T-GOS Web

8 This is homepage, the web address is Brief introduction of service Promote popularity Relevant links E-learning List of reference Q&A Download data for free

9 Latest News and Popular Data (Including subscription to RSS) Information and Web Services Displayed on the Homepage ：  Latest News  Popular Metadata  Application for Popular Data  Application for Popular Services  Subscription Service to RSS for Users to Update Information

10 Search for Metadata Functionality ： Providing user with a variety of ways to search for metadata which contain spatial representation information, coordinate system, data contact information, distribution information, data quality information, and more as to achieve the goal of data circulation.

11 Data Category User can search for metadata according to nine data categories on homepage which are natural environment, natural resources and ecology, environment quality, social economy, transportation network, land information, land- use planning, public pipeline and topographic map. User can search for metadata according to nine data categories on homepage which are natural environment, natural resources and ecology, environment quality, social economy, transportation network, land information, land- use planning, public pipeline and topographic map.

12 Data Circulation User can have online services through this platform which are ：  Application for data and map services ‚ E- payment ƒ Data and map services Download This functionality is to facilitate data circulation.

13 Web Service Functionality The web service functionality can provide data services and function services. For example, it can publish WMS (Web Map Services) of 1/1000 of topographic map, which is data service. Coordinate transformation service and address positioning service are function services. This functionality enable user to search for services online and apply for online services though our platform. User could retrieve and interact with remote sources of map service directly by user’s own application system, which could reduce developing cost and time, which facilitate development and application of NGIS.

14 MAP VIEWER Map locator Landmark Basemap setting Legend Map information WMS setting WMS Map Layer Map viewer

15 MetaData Editor System

16Conclusion We have formed 38 partnerships which come to 4 agencies including 9 real map data and 461 metadata. In the near future, we will continue to develop partnership and map data, in order to facilitate the circulation of national geospatial data and utilization.

17 Thank you Yao-Chun Chuang, Officer Information Center, MOI