1. To ensure that project objectives achieved, owner satisfaction guarantee this is a basic duty of inspection and project managers to measure success or failure, a fundamental symbol of the level. 2. Short-term goals and develop projects overall project control projects identified as a general objective, the project manager is one of the responsibilities will be the overall goal decomposition, carved out of the main content of the work and workload to determine short-term objectives of the project such as the image of progress markers, such as control points. 3. The project management organization capable team this is a good project manager of the basic conditions for the project, but also organizational guarantee for the success of the project. 4. Project managers need timely decisions personally policy issues including the implementation of the program, personnel appointment and removal of incentives, major technological measures, equipment procurement program, allocation of resources, programming arrangements, contracts and design changes, such as claims. 5. To fulfill a contractual obligation to oversee the implementation of the contract, the project manager handling the contract to change the identity of the parties to the contract, the use of contract legally binding means, to the parties to unify their project objectives and terms of the contract。