Ask an engineer to list all of the features in a product they work on. The result will be long. Next, ask a non-technical employee the same question. The list will be much shorter. Finally, ask a customer. The customer will give you a list you can count on 1 hand.
This disparity isn’t bad. It is a natural result of the different levels of understanding in the platform. But the disparity brings about an important challenge. It can make it hard to focus on the things that directly impact your customer.
Source: Your App Has One Feature