An electronic computing gage with IBM card punch was found to be a practical system for monitoring the critical steps in the crimping process of the assembly of some parts. In the crimping process a plastic part is compressed into a metal cup to obtain an assembled component without gaps. Dimensional data of the plastic part and metal cup are recorded on a printed tape and on IBM cards, which are used to program a computer to calculate the standard deviation of the lot. Lot acceptance is statistical and is based on the standard deviation of the lot. The electronic computing gage compares the height of the assembled components before and after crimping and indicates whether or not an acceptable assembly (without gaps) has been made. This system eliminates the need for the manual calculation of height and recording of data at the production site, thereby increasing the reliability of the assembly process at a decrease in cost.