Final answer:
User requirements are meant to detail the expected behavior of a software system, define user goals and tasks, and specify product attributes for user satisfaction. Constraints and criteria influence these requirements by outlining conditions and measurable standards, respectively, that the design must satisfy.
Step-by-step explanation:
User requirements are a crucial aspect of the system development process. They play a key role in defining the characteristics of a successful solution, addressing the needs of the users, and aligning with the goals and objectives of the business.
User requirements describe fully the expected behavior of the software system, goals or tasks that users must accomplish, and product attributes important to user satisfaction. While user requirements often focus on what the system should do, they also include constraints and criteria which must be considered during the design process. Constraints such as cost limitations, safety, and environmental considerations can significantly influence the user requirements and the system's design. Criteria help in evaluating different designs by assessing measurable values that a design should meet or exceed.
It’s important to note that user requirements are not solely about specifying behavior under certain conditions; they also involve understanding the context in which the system will operate, aligning with business objectives, and ensuring that the system provides value to its users and stakeholders. The development should be guided by examining the constraints and criteria that define these requirements. A problem statement helps in obtaining a clear understanding of the scope and available resources, in turn shaping requirements that reflect this deep understanding of needs and limitations.