Article 11
1. For the purposes of this Directive registration systems shall meet the following functional criteria: (i) readability: the required data must be in a format that is easy to read, (ii) availability: the required data must be easily available to the designated authorities for which the information contained in the system is relevant, (iii) facilitation: the system must be designed in such a way that no undue delay is caused for passengers embarking and/or disembarking the vessel; (iv) security: the data must be appropriately protected against accidental or unlawful destruction or loss and unauthorised alteration, disclosure or access. 2. A multiplicity of systems on the same or similar routes is to be avoided.