The so-called whole-process principal-agent construction mode refers to the project construction management mode that the project owner (or project investor) determines and entrusts a qualified project agent (or professional project management company) to manage the whole process of project feasibility study, survey, design, supervision and construction, and complete the construction tasks according to the project scale, standards and investment objectives until the project is delivered to the user after completion and acceptance. The characteristic of this model is that financial investment projects are managed by professional project management companies, which are not only responsible for organizing design, construction and selection of materials and equipment, but also directly undertake the management functions of the whole project process, thus realizing the transformation from small-scale production management to professional management in the past [1]. 1 current research situation in China. At present, the research on this issue is limited to the transformation of professional companies, especially the transformation of construction supervision companies to project management companies, such as He Bosen, etc. Jin Wu Volume "Accelerating the Transformation of Engineering Supervision Enterprises to Project Management Enterprises"; Zhou Hongbo, etc., the development opportunities and countermeasures of supervision enterprises under the construction mode of government-invested projects. However, in fact, the types of project management companies required under the government-invested project construction mode are multi-professional, and there are many problems in its transformation to project management companies, such as the lack of project management knowledge and the cultivation of core competitiveness. In view of these problems, this paper puts forward some suggestions on how to establish a project management company. 2. Analysis of the problems existing in China's current construction market, the professional and socialized project management market is still not perfect, which brings great difficulties to the implementation of the agent construction system. This problem is also exposed in the practice of agent construction system, which is struggling [2]. The development of project management market is not perfect, and the lack of high-level and professional project management subjects is a very important link [3]. With regard to the qualifications of project management companies, the Trial Measures for Construction Project Management issued by the Ministry of Construction in June, 2004 165438+ 10/6 stipulates that project management companies should have one or more qualifications such as engineering survey, design, construction, supervision, cost consultation and bidding agency. The qualification conditions and market access requirements of project management units in various places are also vague, and there is no clear standard and basis for the qualification identification and grading of project management units. For example, the standard of Fujian Province is one of the qualifications of Grade A engineering consulting, Grade A engineering design, Grade A engineering supervision, Grade A tendering agent, Grade A engineering cost consulting, Grade A engineering general contracting, Grade II real estate development and above, or a professional project management institution or a provincial state-owned investment company approved by the provincial government. Chongqing's standards are: comprehensive Grade A engineering design qualification, or comprehensive Grade A supervision qualification, or construction general contracting qualification of this major or above, or comprehensive Grade A engineering consulting qualification [4]. The level and strength of a professional qualification cannot accurately define the professional ability and management level of a project management company engaged in the whole process of project management, nor can it distinguish the scale, grade and strength of a project management enterprise. The above practice can only be a transitional method. Due to the above policies, a certain number of project management companies have appeared in recent years, but they still cannot support a perfect project management market and are only in the development stage. Especially the lack of experienced high-level project management units. Therefore, accelerating the cultivation of project management subjects and the transformation of professional engineering companies into project management subjects has become the premise and top priority of implementing the agent construction system. Otherwise, it is an empty talk to choose a professional project management unit to be responsible for the construction and implementation, and strictly control the project investment, quality and construction period [5]. 3 Project Management Company Construction (1) Cultivate professional advantages into the core competitiveness of project management companies. Core competitiveness is a kind of resource that is difficult to be imitated by competitors and can not be replaced by other resources, and can provide important value for owners. And once formed, it is difficult to be replaced for a long time. Therefore, many enterprises attach great importance to the cultivation of core competitiveness. In the process of changing from a professional engineering company to a project management company, we must maintain our original strength, make full use of the original resources, and cultivate them into the core competitiveness of the company to maintain our dominant position in the market competition. At the same time, it is also necessary to absorb talents from other majors, enrich professional strength and enhance the strength of the whole process management of the project. For example, the design company has advantaged senior talents and well-equipped professional and technical advantages, which can help to provide optimized design scheme in the early stage of the whole project management process, save investment to the maximum extent and protect the economic interests of the owners. Construction enterprises have technical advantages in construction and experience and practices in site management. The bidding agency has experience in bidding market and organizing bidding; The supervision company has the experience of quality control in the construction stage and the ability to coordinate the main bodies of various projects; Real estate companies have the ability to manage or integrate resources from early stage, design, bidding, construction, sales and property management. (2) Introduce project management training mechanism. After 20 years of exploration, practice, improvement and perfection, coupled with the implementation of bidding system, the promotion of contract management awareness and the improvement of construction project supervision system, project management has been gradually standardized. The knowledge system of project management is also very mature. Fully capable of providing a series of project management training. Except for the supervision company, all professional companies can say that at the beginning of the change, they didn't know much about project management. Therefore, we must introduce the training mechanism of project management, and at the same time, we must be in line with international standards and understand the most advanced project management knowledge, including all kinds of advanced project management models and methods, especially the mastery of specific problems, which is more practical for on-site managers. For particularly complex or multi-project management projects, it is also possible to solve the problems in the project in real time by hiring a project management consultant or a think tank composed of project management experts or setting up a project management office (PMO) to provide good suggestions and treatment measures for the project management company. (3) Improve the quality of talents and build the project management company into a highly intelligent and scientific service company. Project management talents should be compound and innovative talents: they should not only have knowledge of the whole process management of engineering projects, but also have professional and technical knowledge in a certain field; It not only has the ability of organization and coordination, analysis and judgment, pioneering and innovation, but also has the ability of information collection, processing and processing; At the same time, it should also have the ability to conduct economic evaluation and risk analysis. Specifically, for the whole process of project management, professionals need to include all aspects, such as: senior project manager, financing, bidding agency and procurement, contract management, planning and architectural design, schedule management, construction site management, financial management, risk and insurance, law, claims, mechanical and electrical equipment specialty, material management, information management, safety management, environmental protection, property management, post-project evaluation and so on. In particular, we should absorb some experiences and practices in the development of today's supervision market. Theoretically speaking, the initial orientation of construction supervision is the project management of specialized and socialized construction units, and the basic theories and methods based on it come from the construction project management. Construction supervision is the whole process of a set of project management. Among all professional companies, it should have the most say in project management. From the beginning to the present, it has played a great role and has been recognized by the government and society. However, its negative effects are intolerable to society, one of which is the extremely low quality of talents, which directly subverts the image and status of this industry in the field of architecture. (4) expand the market. At present, in the field of non-operating projects invested by the government, the government implements the agent construction system. The market demand mainly comes from government investors or investment partners who are mainly government investors, and the market scope is relatively single. In some areas, when choosing project management companies, most local project management companies are selected, and most of them are directly entrusted agents, so the market scope is narrow. The state's investment in social welfare construction projects has increased substantially year by year; With the development of diversification of investment subjects, the market scope of entrusted agent construction will gradually expand to the field of infrastructure construction and the engineering construction projects of social investment partners; With the improvement of the performance of high-level and high-level project management companies and the improvement of project management awareness in the market, the confidence of owners in this industry will be greatly enhanced, so this market will continue to expand objectively. Subjectively, project management companies should not sit still and actively expand their business [6]. (5) Specialized companies can make use of their own advantages and flexibly choose cooperation modes. The whole process of project management belongs to the integration of various majors, and it is sometimes difficult for each project management company to ensure that all majors are superior majors. In the face of large-scale and complex projects, project management companies can use their own advantages to form consortia or other cooperation modes to undertake business. For example, because the design institute does not need to consider the relationship with all parties in the project construction, it is not good at handling the coordination with the owners, localities and other parties; The internal work of the design institute is relatively independent, and the professional division of labor is more detailed, which leads to a single concept and makes it difficult to consider the problem from a global perspective. This is the weakness of the design institute, but it is the strength of the development supervision company for many years. The two can be combined with each other, not only to undertake projects whose scale exceeds the scope allowed by the qualification of a single enterprise, but also to complement each other's advantages, enhance the competitive advantage of enterprises and jointly develop their business. (6) Establish a database and pay attention to the accumulation of engineering experience. It is very demanding for a company to manage the whole process of the project. To implement the special person to collect and study the following information and establish an information base. The information base includes: management modes and management contents of various international engineering projects; Relevant contract models of various international project management modes; Related projects of various international project management modes; Manage software data; Documents, materials and experience summary related to project management of other companies; Various monographs and papers on project management, etc. With the information base, the company can take the initiative when receiving different types of work [7].

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