Implementation Of GIS MyGDI - Malaysia Geoportal

Data Transfer Standard
Special Data
Clearinghouse
GIS Networks and Social
Infrastructure
TEKNOLOGI SEPINTAS LALU
National Spatial Data Infrastructure
NSDI comprises technologies, policies, standards,
procedures and people to promote geodata,
sharing through all level of users.
Establish a neutral
file format for data
exchange purposes
so that every GIS
would only need
one translator to
and from this
common format.
From the establishment
of standard,
many national
mapping agencies
started to create
spatial data clearinghouse
and Internet
based applications
to facilitate access
to spatial data.
* Global & national initiative
* 1 st generation SDI
* As a mechanism for data discovery
* Data oriented (sharing data)
* National interest more towards G2G
* Most data providers are government agencies
GI Service Driven Infrastructure
An infrastructure for services offered to answer certain
requests rather than a network to purely find, view and
exchange geodata
• 2 nd generation SDI
• Service oriented
• Sharing functionalities and geocontents
• Public domain data large scale/local or
regional scale of data
• Detailed & specialized data
• As a commercial services to
government businesses and public
• Delivery model: As an Application Service
Provider and Web Service Provider
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