Characterization, definition, planning, and assimilation of an applicable module for scheduling visitors in a trusted area, by creating a two-way interface for an untrusted area. This is achieved by applying an XML buffer to filter the information schema and ensuring that the information passes through properly and according to the defined rules. Following the planning stage, the RFI is presented to the various companies (Octopus, Lanel, iLobby, and Corevision, among others) for testing and adjusting to the operational requirements.