What is Requirements Model Reuse

Requirements engineering activities demand adequate conceptual modeling support to be effective and efficient, especially in complex domains such as ubiquitous computing. The main objective of this work is to use modeling and analysis techniques adopted from a framework based on Non-Functional Requirements (NFRs) to support elicitation, analysis, and operationalization of these requirements for ubiquitous systems. Such systems operate within ever-changing environments, rely on a growing list of heterogeneous devices, assume user mobility and content server distribution, and require adaptability and context awareness. The chapter presents a NFR catalogue for ubiquitous systems and a method for using it to guide systematic requirements engineering. The chapter also reports on experiences in the construction and use of the catalogue in several projects.