One of the joys of product development, whether it be software, service, or hardware, is getting it right. The way to get it right is to uncover the real business problem, and to write the requirements for the solution that best solves that problem. Without the right requirements it is impossible to build the right solution. Mastering the Requirements Process, Fourth Edition, gives you an industry-proven process for getting to the essence of the business problem and then writing unambiguous and testable requirements for its solution. Many software development projects concentrate solely on the software. This might seem reasonable—after all, most software projects manage to produce some software. However, concentrating almost exclusively on the software is a little like trying to build the Golden Gate Bridge by concentrating on steel. The software, if it is to be valuable to the customer, must solve the customer’s business problem. We build an awful lot of software. Millions (if not billions) of lines of code are produced each year. Much of this code produces the wrong results—it simply does not solve the correct problem. And yet, this is not down to poor requirements, it is down to the project rushing into building a presumed solution without discovering the real requirements.