This document discusses different approaches to the relationship between design and research in architecture. It defines key terms like "design research", "research informing design", "research by design", "research through design", and "design as research". It explores how each approach combines elements of practice, research, and design. The document concludes that "research informing design" and "research by design" both involve studying philosophy and history during the design process, while "research through design" and "design as research" create new knowledge that emerges from or concludes the design process.