(16)Given the large number of reporting authorities involved and to anticipate the considerable differences in the reporting frequency as some of those reporting authorities are, due to their supervisory responsibilities, likely to report AML/CFT material weaknesses and measures less frequently than others, and to achieve operational and cost efficiency both for the reporting authorities and for the EBA, a sequential approach should be built into the architecture of the database. On the basis of that sequential approach, some reporting authorities should have direct, and others indirect, access to the database.