Data are often transferred between programs in a flat file, in which a line, or group of lines, correspond to one element, e.g., an examinee. The contents of the lines and the position of the data within the lines indicate the other elements with which the line element came in contact, and the results of their interactions.

 

In order to convert data from flat file format to Facets format, this data conversion program, with its data description language, can be used.