Academics and practitioners traditionally refer to the terms operations or production management when referring to physical transformations taking place in a single business location (factory, restaurant or even bank clerking) and reserve the term logistics for activities related to distribution, that is, moving products on the territory. Managing a distribution center is seen, therefore, as pertaining to the realm of logistics since, while in theory the products made by a factory are ready for consumption they still need to be moved along the distribution network according to some logic, and the distribution center aggregates and processes orders coming from different areas of the territory. That being said, from a modeling perspective, there are similarities between operations management and logistics, and companies sometimes use hybrid professionals, with for ex. "Director of Operations" or "Logistics Officer" working on similar problems. Furthermore, the term supply chain management originally refers to, among other issues, having an integrated vision in of both production and logistics from point of origin to point of production. All these terms may suffer from semantic change as a side effect of advertising.