The demand for wireless technology in automation systems has widely been increased due to its inheritable advantages like reduce installation cost, minimum space consumption, easy extension, aesthetic benefits, and its increased connectivity options. Due to number of standard profiles available ZigBee provides wide scope to develop, globalize & customize solutions over other wireless technologies. This book describes the development strategy for the project intending to develop a new proposed model for an IEEE 802.15.4 based Wireless Integrated System for short range real time GIS applications. The new proposed model will mainly focus on receiving the GPS data in NMEA (National Marine Electronics Association) format as provided by the sensors & decode it for the required GIS applications.