You may have heard this story about an elephant:
A king brings six men into a dark building. They cannot see anything. The king says to them, “I have bought this animal from the wild lands to the East. It is called an elephant.” “What is an elephant?” the men ask. The king says, “Feel the elephant and describe it to me.” The man who feels a leg says the elephant is like a pillar, the one who feels the tail says the elephant is like a rope, the one who feels the trunk says the elephant is like a tree branch, the one who feels the ear says the elephant is like a hand fan, the one who feels the belly says the elephant is like a wall, and the one who feels the tusk says the elephant is like a solid pipe. “You are all correct”, says the king, “You are each feeling just a part of the elephant.”
The story of the elephant reminds me of the different view of design that people of different backgrounds, education, and experience have. A visual designer approaches UX design from one point of view, the interaction designer from another, and the programmer from yet another. It can be helpful to understand and even experience the part of the elephant that others are experiencing.