Design reviews are an essential part of any design process. However, taking the criticism that comes from such reviews can be hard. The word criticism even has a slightly negative connotation in our culture. But design criticism is invaluable, and effectively giving and receiving it are skills that every software designer needs to master. It can be difficult to filter out constructive arguments from the noise or to discern the reasoning behind offhand remarks. Knowing what tactic to take when someone criticizes your design can keep your creative design flowing and help you improve your ideas. This article gives a summary of some kinds of design criticism you might receive and how you might react