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The Challenges in GIS Data Conversion

GIS Data conversion is conversion of analog data into digital formats that can be used by a Geographical Information System (GIS). Most of the digitally stored GIS maps and images are either vector based or raster based. Raster data is organized in rows and columns. But the vector data is coordinate based with an x and y axis.

It is possible to convert a raster based image into a vector image and also vice versa. There are many types of geographical information systems. While some systems have incorporated automatic conversion of vector to raster images there are other GIS systems that routinely use only one type of data.

Data is frequently converted because they are often exchange between companies. Networking and sharing of common databases in GIS is a common feature that has developed to help in the reduction of cost and share other common benefits among organizations.

The problems that are seen during document conversion is mainly as a result of non similarity in the data models, data structures and the data media. Some of the challenges faced during conversion include,

  • Different users of data
  • Data used for different applications
  • Data is viewed differently by different people
  • Use of different hardware/software
  • Single value/multiple value attribution in systems
  • Incompatible data formats

It is very important to develop standards so that data can be exchanged between systems. Some of the common GIS data formats are TIFF, ARC/INFO, Interactive graphic design and DLG and GRASS formats.

Managed Outsource Solutions is a data entry outsourcing company based in the USA and offers a wide range of data entry services including data processing, data entry, data mining, and data cleansing services to clients in the US, Canada, the UK and Australia.

About Rajeev R

Rajeev R

Manages the day-to-day operations of MOS from NY. With an interest in information technology, Rajeev has guided MOS to extensive use of digital technology and the internet that benefits MOS as well as MOS clients.