Which concept is used to relate how design attributes impact each other?

The correct choice is the Roof concept, which pertains to the analysis of design attributes and their interrelationships. This concept is derived from Quality Function Deployment (QFD) and is visually represented in the QFD matrix, resembling a roof structure, where various design parameters and customer requirements are mapped out.

In this Roof structure, the relationships between different design attributes can be examined to see how changes in one attribute might impact others. This understanding is crucial during the design process, as it aids in making informed decisions that optimize the overall system without compromising performance or quality. Recognizing these interdependencies allows teams to prioritize attributes and make trade-offs to align with customer needs effectively.

The other options refer to different management and operational strategies and do not focus on the interrelation of design attributes. System Dynamics deals with the behavior of complex systems over time, Line of Balance is a scheduling technique used in production management, and Demand Forecasting involves predicting future customer demand, none of which directly address the relationships between design elements. Therefore, the Roof concept is specifically designed for analyzing and managing the interconnectedness of design attributes.