There is an increase in the number

There is an increase in the number of web-based GIS applications over the recent years. This paper
describes different mapping technologies, database standards, and web application development
standards that are relevant to the development of web-based GIS applications. Different mapping
technologies for displaying geo-referenced data are available and can be used in different situations.
This paper also explains why Oracle is the system of choice for geospatial applications that need to
handle large amounts of data. Wireframing and design patterns have been shown to be useful in
making GIS web applications efficient, scalable and usable, and should be an important part of every
web-based GIS application. A range of different development technologies are available, and their use
in different operating environments has been discussed here in some detail.