The Research Of Approach To Information Technology Project Scope Change

Currently, the development of information technology has covered the national defense science and technology, space technology, mobile communication service and public life, even though all of areas. People have more and more requirement for the rapid development of mobile Internet. Try to provide high quality and efficient service to customer, service. It has become a necessary method of competition which relevant enterprise must be taken into account. Voice service is one of technology to reflect Mobile Internet, it is also a tool to enhance the efficiency of the operator. The simple and fast user guide can be provided to customer by the value-added services. The mobile Internet enterprises should delivery the high quality products with the planning time and improve the enterprise competitiveness.The normative project management is the important approaches and methods that ensure the product with high quality under the established time and cost. The project schedule planning and control management are the core of project management. It related to the quality assurance of project deliverables and the playing of project economic benefit directly. It is also one of the key factors to complete project successfully. The project schedule management theory, network planning technique, constraints, and the critical chain theory have been carried on the detailed description in this paper. The author will find the project schedule constraints in the project of A science and technology development co., LTD. Then using the method of Critical Chain Project Management to research the project with the company’s organizational structure and project management theory of system science and analyze the reason of project delay. Through the combination of theory and practice, give the corresponding solutions for the issue of project schedule management. Finally, reduce project risk and improve the product’s ability of delivery.Through the analysis and research for previous projects of A company, confirm the problem which happen in the analysis of project requirements. Then perfect it and reduce the risk of project requirement changes. Apply with the work breakdown structure to refine project plan, indicate the tasks and responsibilities. Allocate the staff reasonable and express the relation between the various project activities clearly. Using three time estimation as project time estimate baseline to improve the accuracy of the project activity time estimates. Using the buffer management of Critical Chain Project Management to improve the project schedule control, make the project schedule and plan to match each other. Finally, combined with the company’s intelligent messaging application project S, the practical application of the above optimization measures to prove the effectiveness of the research results and the feasibility of the promotion of instant messaging related projects in the mobile internet.