Actually, the Apple Human Interface Guidelines say: "The best way to make sure your product meets the needs of your target audience is to expose your designs t

Actually, the Apple Human Interface Guidelines say: "The best way to make sure your product meets the needs of your target audience is to expose your designs to the scrutiny of your users. Doing this during every phase of the design process can help reveal which features of your product work well and which need improvement." http://bit.ly/aAOuwQ http://bit.ly/aAOuwQ