british physician who is considered one of the founders of epidemiology for his work
dr john snow
father of gis
dr john snow
links locational (spatial) and database (tabular) information.
GIS
Enables a person to visualize patterns, relationships and trends.
GIS
This process gives an entirely new perspective to data analysis that cannot be seen in a table or list format
GIS
components of gis
software
data
methods
people
hardware
Provides the functions and tools users need to store, analyze, and display geographical information
Software
key software components
gis software
database software
os software
network software
One of the most important component of GIS
data
data types
vector
rater
image
attribute
Well designed plans and application specific business rules describing how technology is applied
methods
methods include the following
guidelines
specifications
standards
procedures
people in gis include
administrators
managers
GIS technicians
application experts
end users
consumers
Is the computer and the peripherals on with the GIS operates
hardware
hardware includes
computers
networks
peripheral devices
peripheral devices include
printers
networks
digitizers
what gis can do
data acquisition
data processing
data querying and analysis
data display and output
what gis professionals do
Cartographic design
Data analysis
Computer modeling
Programming
Database administration
Project management
System administration
modern term referring to the science, engineering, and art in collecting and managing geographically referenced information
Geomatics
Integrates all the means to acquire and manage spatial data as part of scientific, technical, legal and administrative operations involved in the process of production and management of earth-based data.
Geomatics
GIS process flowchart
- Satellite image acquisition and data gathering
- Per feature digitization
- Ground truthing
- Merging
- Geometry and attribute value check
- Processing
- Output maps
Is a powerful and user-friendly open source geographic information system that runs on Linux, Unix, Mac OSX, Windows and Android.
Quantum GIS (QGIS)
Supports vector, raster and database formats.
Quantum GIS (QGIS)
Licensed under the GNU public license
Quantum GIS (QGIS)
