Automatic Verification is performed on decision tables and event rules when they are saved or modified and can reflect both errors and warnings. For more information, see About Automatic Verification.

Manual Verification is performed on-demand on rule project, rule set or decision entity level. It is designed to detect potential logic problems in decision entities and only creates warnings. For more information, see Verifying Rules Manually.

Preconfigured Verification Services. You can verify decision tables on the basis of preconfigured REST services. For more information, see Assigning a Verification Service to a Decision Table Condition or Decision Table Result.