Business rules are always organized into groups that contain at least one business rule. A business rule group contains all of the validations to be used in one process step. You can use the same business rule group in multiple process steps.
There are different types of business rule groups: one type for the Verification client and another (web business rule groups) for the Web Verification client. Web business rule groups are more limited. Only the most commonly used basic rules are available.
For more information, see Creating a business rule group.