This paper presents a methodology for implementing the feature recognition system for achieving
the Computer Aided Design/ Computer Aided Manufacturing (CAD/CAM) integration goals. The Featurebased
modeling is being used to model the solid models. The features being considered in this paper is hole
form feature. The input of the feature recognition system is the Standard for the Exchange of Product Model
Data (STEP) files. The set of feature recognition rules is generated by using ruled based technique