The General page of the Baseline Properties window displays information about a baseline. A baseline identifies activities and one version of every element in one or more components, typically representing a stable configuration of one or more components.
An incremental baseline is a baseline that is created by recording the last full baseline and those versions that have changed since the last full baseline was created.
A full baseline is a baseline that is created by recording all versions below the component root directory.
Generally, incremental baselines are faster to create than full baselines; however, the system can look up the contents of a full baseline faster than it can look up the contents of an incremental baseline.