目前我国设计部门多数采用工程分类编号的方法,它和过去的大流水编号法相比,无疑这是工程设计档案管理的一项较大改进。它的主要优点是: At present, most design departments in our country adopt the method of project classification number. Compared with the big current numbering method in the past, this is undoubtedly a big improvement in the archives management of engineering design. Its main advantages are: