Throughout this book we will refer to jobs in shorthand, simplistic terms for ease of reference--but it's important to emphasize that a well-defined job is multilayered and complex. And that is actually a good thing. Why? Because it means that perfectly satisfying someone's job likely requires not just creating a product, but engineering and delivering a whole set of experiences that address the many dimensions of the job and then integrating those experiences into the company's processes (as we'll discuss in depth later in the book). When you've done that well, it's almost impossible for competitors to copy.