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Mobile Geographical Information System (Mobile GIS)
Ashish B.Sasankar Head, MCA Dept. G.H.Raisoni Institute of Information Technology, Nagpur -16 (Maharashtra) Email: ashish_sasankar@yahoo.com Prachi S.Umbarkar Faculty ,MCA Dept., ICFAI National College 13,Ambazari Hill Top Nagpur-33(Maharashtra) EmailId:- prachi_u2004@yahoo.com
Abstract
Mobile geographical Information System (Mobile GIS) is a Geographical Information System based on mobile computing and mobile Internet. It is not a conventional GIS modified to operate on a smaller computer, but an extension of Web GIS to mobile Internet including wireless Internet/Intranet and mobile communication network. Mobile GIS is an extension of the enterprise. It's part of a system, and in fact is dependant on a system for its success. It's not an island unto itself. Moving forward to today, the significance of GIS as a centralized information system - rather than simply a useful cartographic tool - is much better understood and accepted. GIS is becoming a key component of business systems as a whole and is not just restricted to the confines of geospatial analysts. The administrative role still exists. However, rather than restricting operations to a specialized few on behalf of the organization, the spatial analysis and cartographic aspects of GIS are now being carried out by the decision makers themselves. Data is now widely distributed throughout the organization over its network and, of course, across the Internet to the wider community. Moving into the future - which is not that far away - mobile GIS can be considered very simply as an extension of the existing enterprise GIS we use today. Mobile GIS is a system. The field application component should not be thought of a the limit of a mobile GIS. It is dependant on the underlying GIS engine; utilising its power in much the same way as the broad enterprise business system. Mobile GIS means "GIS-enabling the workforce where they work with the tools and data they need when and where they need it."
1. Introduction .
 Fig 1: What is mobile GIS? ,How useful is location? , What about field devices? The components that work together to make a mobile GIS operational, which will also allow us to better define the term mobile GIS; The significance of location within the operational context of a mobile GIS; then finally Important attributes required in field devices by those using mobile GIS. To understand mobile GIS and where it will take us, it's worth taking a quick look back to consider the changes that have occurred within the broader context of geographic information systems. From here we'll then be able to consider how mobile GIS will help to expand the role GIS has to offer in the future. The primary focus of GIS, in the early days, was largely restricted to technically skilled operators. GIS professionals did everything from building database through to complex spatial analysis and cartographic design on behalf of others within an organization. Operations were generally confined to powerful, stand-alone computers with the GIS database operated and maintained as a totally separate component within the organizational context  Fig 2:
Accessible to the entire workforce, both office and mobile  Fig 3: Moving into the future - which is not that far away - mobile GIS can be considered very simply as an extension of the existing enterprise GIS we use today. The operations and data that decision makers use today will be made accessible to the entire workforce of an organisation - both office bound staff and mobile staff. The workforce will be 'knowledge-enabled' to the extent that they will no longer be dependant on others to assign tasks or to carry out queries on their behalf. They will have access to the same information everyone else in the organisation has. The expansion of the enterprise will take many different forms and will be utilised by a wide and varied audience. 1.1 Underlying Technology .  Fig 4 :Data management  Fig 5: Location awareness  Fig 6: Spatial analysis
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