GIS works much differently than other software applications. Instead of a single file type such as a DOC for Word or DWG for AutoCAD or XLS for Excel, GIS makes use of many file types and data formats. This video gets to the basic concepts of what is a feature, a feature class and a layer along with how they are related.

After watching this video, you might find these videos about specific data types also helpful:

What is a Shapefile    • What is a shapefile  
Geodatabase Basics Part 1    • Geodatabase_Basics_Part1  
Geodatabase Basics Part 2    • Geodatabase_Basics_Part2  
Geodatabase Basis Part 3    • Geodatabase_Basics_Part3  

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