1. NSF DUE-1205110; 0903270 Laura Johnson Sandy Stephenson

2. NSF DUE-1205110; 0903270 GeoTEd Partners

3. NSF DUE-1205110; 0903270 Why Create Data? Can’t find what you need Available data Too old Not specific or accurate enough Too expensive

4. NSF DUE-1205110; 0903270 Methods Of Data Creation 1. Edit existing digital data 2. Create completely new digital data 3. Upload GPS collected data 4. Convert non-digital to digital data Called “digitizing”

5. NSF DUE-1205110; 0903270 What can be edited? Editing refers to: Data creation from scratch Data manipulation We can edit: Location Attributes

6. NSF DUE-1205110; 0903270 Editing Existing Data Use the Editor toolbar in ArcMap Must turn on the editor to begin editing Can now alter location with several different tools Can also alter attributes by typing them in Without the Editor toolbar: Create and delete fields in an attribute table Calculate field values

7. NSF DUE-1205110; 0903270 Creating new data Two steps: 1. Create new feature class (or shapefile) in ArcCatalog – Coordinate system – File type 2. Edit data using the Editor toolbar in ArcMap

8. NSF DUE-1205110; 0903270 Map Topology Rules about data connectivity between different datasets ArcMap has a Topology toolbar you can use to set up these rules This topology is Map Topology and lasts only for the current Editor session Geodatabase Topology can also be created Permanent: works regardless of map document or edit session Set up within the Geodatabase feature dataset

9. NSF DUE-1205110; 0903270 Questions?