Final answer:
The major issues in the case study are meeting constraints, balancing environmental sustainability and consumer comfort, and the need for revisiting criteria and decision-making processes.
Step-by-step explanation:
The major issues in the case study, 'Design house partnership at Concept Design Services', include the challenge of meeting constraints, the need to balance environmental sustainability and consumer comfort, and the potential need for revisiting criteria and decision-making processes. In the case study, Concept Design Services did not meet the constraint of requiring cities to build charging stations, leading to its elimination. While Concept 1 and Concept 5 ranked high in terms of low pollution, renewable energy use, and low cost, they were found to be less comfortable for consumers, which could impact commercial success. The design team may need to decide whether to move forward with one of these designs or improve their criteria and repeat the decision process. They might also consider exploring different combinations of solutions or assumptions to develop better concepts.