- following questions: Do you like the feature?; Do you like using it?; and Is it a valuable part of the product? Let your answers help you grade the feature with an A, B, C, or D, or fail it with an F.
- When done, discuss your grades with those in your group. Agree on a grade that best represents the group's opinion of the quality of that feature.
Ideally you might perform this experiment with your customers, since you're concerned with customer satisfaction. But doing a quick temperature check inside your team is a good starting point. It's also good to compare your impressions with those of your customers.
I started with a bit of a rant about the imperfections of the Kano method. And while that method may have its limitations, the idea of looking more closely at the subjective quality of a product along with the objective quality is what's most important-and is what I believe was Kano's real point. Before polluting your product with more features, consider a quick report-carding exercise. What grade would you give your product today? Consider that grade a measure of your product's subjective quality. Before you add additional features, consider whether you may want to improve the quality of the features you have instead.
- Attractive Quality and Must-be Quality , by N. Kano, N. Seraku, F. Takahashi, and S. Tsuji.