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March 31, 2006. Another removal exam for those who were
not able to take the first one because of the batch tour will be given this Monday, April 3, 2006 at 2PM.
March 27, 2006. Schedule for the GIS removal exam is
finally set tomorrow since the submission of grades is this week already.
March 25, 2006 Announcement: GIS re-exam will be on April
3, 2006 to give a chance for those who are joining the batch tour to take the exam. See you.
March 21, 2006: Announcement: The final exam will be a BRING
HOME EXAM. Click here!
Laboratory Grades are now available. I might be giving
a removal exam next week! For those who failed, it would be your last chance.
What is a GIS? - a particular form of Information System applied to geographical data
- a System is a group of connected entities and activities which interact for a common purpose
- a car is a system in which all the components operate together to provide transportation
- an Information System is a set of processes, executed on raw data, to produce information which will be useful in decision-making
- a chain of steps leads from observation and collection of data through analysis
- an information system must have a full range of functions to achieve its purpose, including observation, measurement,
description, explanation, forecasting, decision-making
- a Geographic Information System uses geographically referenced data as well as non-spatial data and includes operations
which support spatial analysis
- in GIS, the common purpose is decision-making, for managing use of land, resources, transportation, retailing, oceans
or any spatially distributed entities
- the connection between the elements of the system is geography, e.g. location, proximity, spatial distribution
- in this context GIS can be seen as a system of hardware, software and procedures designed to support the capture, management,
manipulation, analysis, modeling and display of spatially-referenced data for solving complex planning and management problems
- although many other computer programs can use spatial data (e.g. AutoCAD and statistics packages), GISs include the additional
ability to perform spatial operations
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