Project management refers to planning, organizing, directing, coordinating and controlling all the work in the project life cycle, including project proposal, feasibility study, project decision-making, design, equipment inquiry, construction, visa and acceptance, with the viewpoint, theory and method of systems engineering, so as to ensure the project quality, shorten the construction period and improve the investment benefit.

According to different classification standards, engineering projects can be divided into different types.

Productive projects and unproductive projects

Productive engineering projects refer to engineering projects that form the production capacity of material products, such as those in industrial sectors such as industry, agriculture, transportation, construction, posts and telecommunications; Unproductive engineering projects refer to engineering projects that do not form the production capacity of material products, such as public utilities, culture and education, health and sports, scientific research, social welfare, finance and insurance and other departments.

(two) basic construction projects (hereinafter referred to as construction projects), equipment renewal and technical transformation projects.

Capital construction projects refer to new construction, expansion projects and related work with the main purpose of expanding production capacity or increasing engineering benefits. A construction project is generally composed of one or several single projects with memory connection on one or several construction sites, within the same overall design or preliminary design scope, and is subject to unified accounting in economy, independent organizational form and unified management in administration. Enterprises, institutions, administrative units or independent projects are usually used as construction units.

(three) large, medium and small projects

Large-scale projects, medium-sized projects and small-scale projects are divided according to the total construction scale or total investment of the project. Industrial projects that produce a single product are divided according to the design ability of the product; Industrial projects that produce a variety of products are divided according to the design ability of their main products; There are many varieties produced, so it is difficult to divide them according to production capacity and investment. The division standard is based on the national division standard for large, medium and small construction projects.