Interface: Traveler Card Update Devices - Service Agency Cards

Architecture Flow Definitions
payment (Planned)
Payment of some kind (e.g., toll, parking, fare) by traveler which, in most cases, can be related to a credit account.
request for payment (Planned)
Request to deduct cost of service from user's payment account.
traveler card information* (Planned)
traveler card update* (Planned)