建筑业在我国是位居工、农、商之后的第四大产业。１９９８年其总产值达１００６２亿元（占国民经济总产值的６%多） ,全国房屋竣工面积为６ ５７亿平方米 ,其中住宅面积为３ ８１亿平方米。如此大的工程量 ,质量关由谁来把？建筑行业中 ,对住宅建设质量有一种提法 ,叫作“业主 Construction industry in our country is located in the fourth industry after work, agriculture and commerce. In 1998, its total output value reached 1006.2 billion yuan (accounting for more than 6% of the GNP). The completed area of ​​houses in the country was 65.7 billion square meters, of which the residential area was 38.1 billion square meters. Such a large amount of engineering, quality control by whom? In the construction industry, there is a reference to the quality of residential construction, called “owner.”