Let's go on a tangent for a little bit, but let's try to avoid going off topic. A shift in course is referred to as a tangent in mathematics. According to Tangent, the key to engineering success in product design is a change of course. The status quo does not always result in success. Tangent's approach to engineering success begins with gathering all the necessary inputs, regardless of whether you are a small business without a full engineering team or a huge firm with an internal innovation team. Whom are we doing on behalf of? Why are we acting in this way? Then, using our product development process, we methodically work to deliver a new product by (How are we going to do it).