Comparison of Analogue and Digital GIS Systems and Other Similar Systems like Traditional Systems (Especially for GATE-Geospatial 2022)

Get unlimited access to the best preparation resource for IMO-Level-2 : get questions, notes, tests, video lectures and more- for all subjects of IMO-Level-2.

Examrace Books on Mapping, GIS, and Remote Sensing prepares you throughly for a wide range of practical applications.

Traditional Cartography and GIS

Difference between Traditional Cartography and GIS
Traditional CartographyGIS
Data CollectionArial Photography, SurveysArial Photography, Surveys
Data ProcessingAggregation, Classing, Liner ProcessAggregation, Classing, Circular Process
Map ProjectionFinal stepNot always a final step

Comparison of Input Subsystem for Analog V/S Digital GIS

Difference between Map and GIS- Input and Sources
MapGIS
InputRecorded on a paper from a collected source

Points, Line, Area

Encoded in a computer from a collected source

Points, Line, Area

SourcesArial Photography,

Digital remote sensing,

Visual description,

Surveying

Same as map data,

Digital Line Graph (DLG)

Digital Elevation Models, Digital Orthophotoquads, Other Digital Databases

Comparison of Storage and Retrieval Subsystem for Analog V/S Digital GIS

Difference between Map-Analogue and GIS-Digital
MapGIS
Points, Line and Areas are drawn on paper with symbols.Points, Line and Areas are stored as a grid cells or coordinate pairs and pointers in computer.
Retrieval is simply a matter of map reading.Retrieval requires efficient computer search techniques.

Comparison of Data Manipulation and Analysis Subsystem for Analog V/S Digital GIS

Difference between Map and GIS Data Manipulation
MapGIS
Requires rulers, plan meters, compasses and other tools all used by a human analyst.Uses the power of the computer to measure, compare and describe the content of the database.
Restricted to the data as they are combined and represented on the paper mapAlways ready access to the raw data and allows combined and reclassification for further analysis.

Comparison of Data Output and Display Subsystem for Analog V/S Digital GIS

Difference between Map and GIS Data Output
MapGIS
Graphic device onlyThe map is only one type of GIS output
Many forms of mapWith minor exception, GIS offers some option as traditional hand drawn maps.

Developed by: