The subject matter discloses a method performed by a computerized server communicating with multiple computerized devices, at least some devices are wearable devices associated with users, for planning a real world location. The method comprises receiving information concerning a real world location, modeling the real world location into a virtual location, receiving a plurality of requests for modifying said virtual location from the users via wearable devices, the requests comprise operations, selecting an operation for modifying the virtual location, processing said selected operation for modifying said virtual location and transmitting the selected operation to a computerized device of a person, thereby instructing the person to modify said real world location according to the selected operation.