Components of LIS
Land Information System is an automated development of Cadastral Mapping. In general there are two main issues of concern for setting up a LIS, viz.
- Spatial component/Survey data describing the spatial disposition of the parcels in the real world – Cadastral Maps
- Non-Spatial component describing details such as ownership details, tax value etc – Legal Information
The Spatial component requires setting up of a spatial database (SDB) containing information on survey data, coordinates, edge details for parcels, parcel dimensions, parcel acreage, boundary descriptions. Whenever a parcel of land is updated, its spatial and non-spatial data will be archived for future access. In short, the SDB will retain all surveys and hence the spatial definition of parcels for historical access.
The Non-Spatial component as described earlier would store non-spatial/ attribute information about the parcel such as
- Ownership details
- Market Value
- Land Use
- Tax Value
- Legal Authority in-charge of the parcel
- Pictures of Plan, Elevation etc. of the structure constructed on a parcel
- Past Ownership details
- Encumbrance details
- Demographic details for each parcel (No. of Persons/ Household, Gender ratio etc.)
- Socio-economic details like Average Family Income, Employment etc.)
Cadastral Data / Spatial Database (SDB)
The Cadastral Maps maintained by the Survey and Land Records Department, of various States, may be generally classified into two types based on the information that they carry:
The sub components of the above two may be listed as under:
Town Maps
Village Maps
- Village FMB’s or Survey Fields
The names, with which different maps are called, vary from State to State as the local language is still in use in the department.
Software for Cadastral Mapping & LIS
The GIS team at PIXEL INFOTEK has developed a customized interface for the purpose of Cadastral Maps running on Bentley’s MicroStation/J – the powerful CAD engine from M/s Bentley Systems Inc., USA. The user friendly tools and interface developed by PIXEL INFOTEK is powered by the powerful programming languages and tools available in MicroStation/J viz., MicroStation Basic, MicroStation Development language (MDL), JMDL and so on.