The Forgotten Side of Quality
Jeff Patton explains how Kano model is applied while adding features to a product:
The Kano Method separates product features into general categories. The three big ones are “must haves,” like: brakes on a car (we need those); “one-dimensional” items like gas mileage on a car (higher mileage is better); and attractive quality or “delighters” (leather seats in my German car are a delighter). The idea is that your product should have all the must haves, maximize the one-dimensionals, and toss in some delighters.
A common problem with most softwares and products, in general:
In software development, more features is often considered better. Since we’re consumed with the quantity of features, we often forget the quality of the software as a whole unit.
How to fix this problem:
- In a small group, brainstorm the major features of your product.
- Independently for each feature write your “grade” for the quality of the feature. Answer the 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.