About Requirements - More than half of the errors in a project originate with the requirements and analysis activities done prior to product design. Requirements are the heart of any project. They describe what the outcome of a project must be, what it must do, or the qualities it must have. In order to be successful, the project manager and his or her team need to identify and manage the project requirements. However, knowing that one must identify and manage the project requirements and actually doing so are two different things. Most projects fail as a result of incomplete requirements, poorly written requirements or misinterpreted requirements