(27)Arrangements where the client of a member or participant of a trading venue, including the client of a direct clients of organised trading facilities (OTFs), submit their orders through arrangements for optimisation of order execution processes that determine parameters of the order other than the venue or venues where the order should be submitted through SORs embedded into the provider's infrastructure and not on the client's infrastructure should be excluded from the scope of direct electronic access since the client of the provider does not have control over the time of submission of the order and its lifetime. The characterisation of direct electronic access when deploying smart order routers should therefore be dependent on whether the smart order router is embedded in the clients' systems and not in that of the provider.