Abstract: A manufacturing rework station is integrated with a computer. A repair cell program running on the computer functions as an interface between the rework station operator, one or more databases, and one or more knowledge bases. The repair cell provides the operator with an easy to use graphical environment which aids in the diagnosis and repair of defects. The cell simultaneously provides operator assistance, records operator activity, and collects new knowledge when the problem under analysis was previously unknown. The databases contain manufacturing history for each individual article. The operator will input the serial number of the article with a bar-code reader, causing the program to fetch the record of the article. The computer generates an image of the article on the display. The operator may select a component of the article with a lightpen.