Abstract: There is provided a method and a system of providing a seamless service. The method includes receiving seamless service application information from a first device; receiving, from a second device, history information of at least one application executed by the second device; receiving a seamless service request from the first device; generating seamless service data for the first device, in response to the request, based on the received seamless service application information and the received history information; and transmitting the generated seamless service data to the first device, wherein the first device executes at least one seamless service application based on the transmitted seamless service data.

Abstract: A method of calculating a quality-value of a mobile communication service is disclosed. In one embodiment, the method includes i) loading an engineering design of the building into a memory of a computing device having a graphic user interface (GUI), ii) applying an engineering factor which influences a quality of the mobile communication service on the engineering design when a communication device, configured to provide the mobile communication service, is set up in the building; and iii) calculating, with a processor of the computing device, the quality-value of the mobile communication service based on the applied engineering factor.

Abstract: A legacy cooperation device and processing method for a mobile communication system to be cooperated in an open mobile business supporting system is disclosed. In one embodiment, the method includes i) setting up a plurality of biz objects that perform a determination process based on a service process and a result thereof of a legacy system of a mobile communication system, ii) providing an API (application program interface) for each of the setup biz objects, iii) receiving a result of performing a predetermined biz object from a legacy system through the provided API and iv) requesting a service process to a corresponding legacy system according to the requested biz object, receiving a result of performing the service process, and returning the received result to the legacy system that requests the service process.