The workplace is the residence of each household.

The workplace is the residence of each household. The number of employees in the enterprise is small. Generally, there are three people in one family, or the internal members of the family and a few migrant workers. The production, processing, operation and storage are carried out in the same building. The characteristic of this kind of enterprise is that the operator takes the residence as the production place and integrates the owner's family and employees' dormitory, workshop and warehouse, It is the subject of the "three in one" problem.