User Interface. Web GIS platform provides a number of
user interface components: Web service client, GIS java
Applet and any other web service enabled applications. The
mobile and PDA that support the web service standards
interface could get the map and geo-referenced data through
the GIS web service interface. A GIS Java Applet is another
user interface that can be used to retrieve and handle the vector
and raster map using the map tools. Java applet enables spatial
viewing, querying, and richer editing capabilities to be easily
embedded in desktop and web applications.