1. Size relation in the same project (from big to small):

Single project unit project division project? Sub-project.

2. A single project refers to a project with independent design documents that can independently exert its production capacity or benefit after completion. Also known as an engineering project.

For example, houses in production workshops, office buildings and factories; Teaching building, canteen, dormitory, etc. It's part of an infrastructure project.

3. A unit project refers to a project with independent design and construction conditions, but it cannot independently exert its production capacity or benefit. It is an indispensable part of a single project.

For example, the single project of the production workshop is composed of plant engineering, mechanical equipment installation engineering and other unit projects. Building engineering can also be subdivided into general civil engineering, pipeline engineering, electric lighting engineering and industrial pipeline engineering.

Extended data:

A single project refers to a complete set of projects with independent design documents, which can independently exert production capacity or benefit after completion; A unit project refers to a project with independent design and construction conditions, but it cannot independently exert its production capacity or benefit. The difference between the two is mainly to see whether they can independently exert their production capacity or benefits after completion.

A single project, also known as an engineering project, refers to a project with independent design documents that can independently exert its production capacity or benefit after completion. A construction project can be composed of a single project or several single projects. In industrial construction projects, such as independent production workshops and experimental buildings; Civil construction projects such as school teaching buildings and dormitory buildings can be called single projects, which include construction projects, equipment installation projects and the purchase of equipment and instruments.

Unit projects are independently designed and constructed, but after completion, they cannot exert their production capacity or benefits independently. A single project is generally composed of several unit projects.

Baidu encyclopedia-unit project