(4)In order to ensure that market data is provided on a reasonable commercial basis in a uniform manner in the Union, this Regulation specifies the conditions that market operators and investment firms operating trading venues and systematic internalisers must fulfil. These conditions are based on the objective to ensure that the obligation to provide market data on a reasonable commercial basis is sufficiently clear to allow for an effective and uniform application whilst taking into account different operating models and costs structures of market operators and investment firms operating a trading venue and systematic internalisers.