A man walks into a car dealership after winning the lottery to buy his first car. The salesperson explains the car’s functionality. Although he realizes that the man has never driven a car, he calmly continues to describe the car's advantages.
"What do these letters stand for?" The man asked, point to the steering wheel.
"The 'D' is for drive, and the numbers are the gears, with '1' being the lowest gear on up, helping you to go faster." The sales person replied.
"What does the 'R' stand for?" The man continued.
Well, at this point the sales person was getting pretty frustrated, so answered in a facetious manner.
"The 'R' stands for Rocket to activate a jet engine in the car." The sales rep said, sarcastically.
The man looked satisfied, paid cash, and took the car right then and there off the lot. About an hour later, the sales person saw the man again come into the dealership with massive injuries. The look on the man’s face showed anger.
“Sir, what happened to you?!" The sales representative asked with shock.
“Well," the man explained, “I did as you told me and started driving; putting the gear shift in the numbers 1 through 4 and the car was doing great. I wanted to go faster, so I shoved the gear shift in Rocket and man did that thing go!"
So much for the dashboard as a benefit to this customer. The sales rep did not explain the functions or how they interrelated, so the customer had no idea what one function would do. The “R" was not defined or described, so any description would fit.
What about other dashboards that is supposed to depict data or trends? Do they do what you want them to do?