Review

After creating an empty feature class, the next step is to create the features that it will store. ArcMap provide tools for both creating new geodatabase features and editing existing geodatabase features. Listed below are key points you should remember about creating and editing features stored in a geodatabase:

• A geodatabase feature class can store point, multipoint, line, or polygon features. Multipart features and features with true curves are also supported.
• You can create new features by digitizing or by using ArcMap editing tools such as Merge and Union. Features can also be created as the output from geoprocessing operations, such as clip.
• When editing features, you can maintain their spatial relationships by creating a map topology. Once you've created a map topology, you can use ArcMap's topology editing tools to maintain coincidence between parts of features within a single feature class or among multiple feature classes.
• There are three types of geodatabase annotation: standard, feature-linked, and dimension annotation. All annotation feature classes contain at least one annotation class.