| The national water conservancy satellite communications network has built more than 10 years, satellite transponders resources life is about to expire, satellite master station system equipment aging, fault frequency, the function also cannot satisfy medium and small rivers, small and medium-sized reservoir communication warning, floods and typhoon disaster communications warning and emergency rescue mobile communications, and other water conservancy of new business needs, it is urgent to reform. But now the country's water conservancy satellite communication network with larger scale, the system is very complex, with satellite transponders resources, multiple sets of satellite master station system and 582 satellite station. This transformation, satellite transponders need to change; Satellite master station should not only retain existing business, and to build a new system to satisfy new business requirements, involving application and system interface device is numerous, has many difficult to foresee the interface device construction and system alignment work; Satellite station numerous, FenBuMian wide a point sparse, most remote, complicated cases, the investment from diverse sources, demand is hard to control. Therefore, the water conservancy satellite communications network reconstruction project scope is difficult to define, and project implementation process easily changed, the scope of the project scope management difficulties.This paper, by letter investigation, field investigation and expert users discussion consulting method, in-depth research status quo, collecting water conservancy satellite communications network project reform demand, and in-depth analysis, defines the project scope, and by using the top-down analysis method, formulated the water conservancy satellite communications network transformation project of a work breakdown structure, and define the project scope. In order to control the project scope, and analyzed the cause of the project scope changes may be potential factors, and in the light of these factors formulated the control project scope changes methods, including in-depth research, strengthen communication, establish change approved system, obligate sufficient project reserve, etc. On this basis, but also specifically formulated for water conservancy satellite communications network reconstruction project scope changes control standard operation procedure, it can be scientific, standardized, better change management control changes.The thesis research achievements, to ensure that the national satellite communicate network of water resources transformation project of complete smoothly, to achieve the anticipated target, to promote the construction of water resources satellite communicate network, for the long-term development of water resources undertakings provide reliable communication support, have very important sense. |