A walk-through is a review of a product by peers the participants approximately at the same level in the organization. This is a systematically a piece of software. The rules are very simple, but very important. A design walk-through is a quality practice that allows designers to obtain an early validation of design decisions. Walk-through is cost effective techniques for testing and clients to experience the design of their own. Walk-throughs are becoming more popular in recent years because they offer significant advantages over traditional training methods.