Common questions about GIS



 Are GIS and geospatial the same?

There is an increasing trend to use the term geospatial instead of GIS.  What is the difference between geospatial and GIS?  Although some may use the terms interchangeably, there is a distinct difference between the two in that GIS refers more narrowly to the traditional definition of using layers of geographic data to produce spatial analysis and derivative maps.  

Geospatial is more broadly use to refer to all technologies and applications of geographic data.  For example, popular social media sites such as Foursquare and Facebook use “check-ins” that allow their users the ability to geographically tag their statuses.  While those applications are considered to be geospatial, they don’t fall underneath the stricter definition of what makes up a geographic information system. 


What are the different types of GIS Data?

GIS data can be split into two main categories: vector and raster data.  Vector data is data that is represented as either points, lines, or polygons.  Raster data is data that is cell-based such as aerial imagery and elevation data. 


What is the different between a certificate and certification in GIS?

Although the terms seem similar, a certification in GIS is an acknowledgement of proficiency in one or more areas of GIS, usually obtained through taking an examination.  For example, the most common general certificate in GIS is the GISP, offered by the GIS Certification Institute (GISCI). 

 Esri offers a serious of certification exams for its various software products.  A certificate in GIS typically achieved by taking short series of GIS related courses from an educational institute, culminating in that institute offering a piece of paper acknowledging competition of the course.   

A certificate in GIS is not a degree but often employers might accept a certificate in GIS in lieu of a degree in a geography or GIS related major. 


How do I get a GIS job?

Beyond taking coursework GIS, cartography, and programming, there are several strategies you can employ as you seek a career in GIS.


What programming languages should I learn

Python is the most common language for scripting, used by both ArcGIS and QGIS.  There are other languages and scripting languages you can learn to round out your skills as a GIS developer

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