Design should be data informed but not data lead. Simply because data tells you about the situation now but rarely is it enough to create a model in order to pr

Design should be data informed but not data lead. Simply because data tells you about the situation now but rarely is it enough to create a model in order to predict the effect of future changes accurately. Further data generally doesn't fully describe whats happening and must be interpreted. This means both the act of understanding the product use and improving the product remain subjective at the point of design. It's only later after the product has been changed we can verify our designs. People with good taste and domain knowledge aren't going to go away anytime soon.