我们知道,一切档案,都是由文件材料转化而来的。而文件材料并不是全可转化为档案,档案则只是文件材料的一部分。这就要求我们进一步找出已转化为档案的文件材料同没转化为档案的那部分文件材料所含属性的本质差别。我觉得应当从三个方面去分析: We know that all files are transformed from documents and materials. The documentary material is not completely convertible into a file, and the file is only a part of the documentary material. This requires us to further identify the essential differences between the attributes of documents that have been converted to archives and the parts of the documents that have not been converted to archives. I think we should analyze from three aspects: