A feature dataset is an organizational group of related feature classes that share a common coordinate system and extent.
We will start by create a feature dataset called GPS Features.
1. To create a new feature dataset called GPS Features
Right-click on Training_Day 1.mdb
Choose New / Feature Dataset
The Feature Dataset dialog box opens
Name the feature dataset GPS Features
2. To select the WGS 1984 Geographic Coordinate System for this feature dataset
Navigate to and select Geographic Coordinate System / World / WGS 1984
Click Next to continue
Click Next to leave the Vertical Coordinate System unspecified
Click Finish to accept the default tolerances and complete the creation of the feature dataset
3. To view the result of your efforts
In ArcCatalog, view the feature dataset button and its hierarchy within the geodatabase
You have now created the GPS Feature feature dataset
In the next step, we will create the feature classes for this feature dataset.
To display frequently used coordinate systems at the top of the list in the wizard rather than navigating down through the tree.
From the ArcCatalog menu bar, choose Tools / Options
Click on the General tab
Check the box next to the Coordinate Systems folder if needed
In the ArcCatalog tree, drag and drop (or copy and paste) the coordinate system(s) used most frequently into the top level Coordinate Systems folder.