Once an evidence type and its related pages are defined, the evidence type is activated in order to make it available to be associated with case types. Activating an evidence type also generates corresponding rule classes that are based on that evidence type, domain definitions, security identifiers, and evidence property files, and validates the evidence type data defined using the editor. The rules classes generated allow rules developers to refer to the evidence attributes and enables them to write eligibility and entitlement legislation rules using the CER Editor. For more information, see Defining Rules and Assigning Them to Products.