(5)The rules for the implementation of the regime governing operating conditions for the performance of investment and ancillary services and investment activities should reflect the aim underlying that regime. That is to say, they should be designed to ensure a high level of investor protection to be applied in a uniform manner through the introduction of clear standards and requirements governing the relationship between an investment firm and its client. On the other hand, as regards investor protection, and in particular the provision of investors with information or the seeking of information from investors, the retail or professional nature of the client or potential client concerned should be taken into account.