The authentication level value indicates how much to trust authentications. Once a user has authenticated, this value is stored in the user's SSOToken. When the SSOToken is presented to an application, the application can use the stored value to determine whether the level is sufficient to grant the user access. If the authentication level does not meet the minimum value required by the application, it can prompt the user to authenticate again in order to attain a higher authentication level. The authentication level should be set within a realm's specific authentication template. The Default Authentication Level value described here will apply only when no authentication level has been specified in the Authentication Level field for a specific realm's authentication template. The Default Authentication Level default value is 0. The value of this attribute is not used by OpenSSO Enterprise but by any external application that may chose to use it.