# Designing for interaction > ## Introduction ## Introduction ## Chapter 1. What is Interaction Design? > "Designing isn't about choosing among multiple options - it's about creating options, finding a third option instead of choosing between two undesirable ones." --[Dan Saffer](https://wiki.g15e.com/pages/Dan%20Saffer.txt), [Designing for interaction](https://wiki.g15e.com/pages/Designing%20for%20interaction.txt) [#ref](https://wiki.g15e.com/pages/Dan%20Saffer.txt#third-option) ## Chapter 2. The Four Approaches to Interaction Design [User-centered design](https://wiki.g15e.com/pages/User-centered%20design.txt): - Overview: Focus on user needs and goals - Users: The guides of design - Designer: Translate of user needs and goals [Activity-centered design](https://wiki.g15e.com/pages/Activity-centered%20design.txt): - Overview: Focus on the tasks and activities that need to be accomplished - Users: Performers of the activities - Designer: Creates tools for action Systems design: - Overview: Focus on the components of a system - Users: Set the goals of the system - Designer: Makes sure all the parts of the system are in place Genius design: - Overview: Skill and wisdom of designers used to make products - Users: Source of validation - Designer: The source of inspiration ## Chapter 3. Design Strategy ## Chapter 4. Design Research ## Chapter 5. Structured Findings ## Chapter 6. Ideation and Design Principles ## Chapter 7. Refinement ## Chapter 8. Prototyping, Testing, and Development ## Chapter 9. The Future of Interaction Design ## Epilogue: Designing for Good IBM and the Holocaust: > The book [IBM and the Holocaust](https://wiki.g15e.com/pages/IBM%20and%20the%20Holocaust.txt) by relates the story of a timber merchant from Bendzin, Poland, who, in , arrived at as a prisoner. There, the Nazis assigned him a five-digit IBM Hollerith number, 44673. This number was later tattooed on his forearm. This number, and the thousands like it, were part of a custom punch card system specifically designed by IBM to track prisoners in Nazi concentration camps. (In the system, the Auschwitz camp code was 001.) The Hollerith system tracked prisoners and their availability for work, their punch card numbers following them from labor assignment to labor assignment until most of them were put to death. > > was extremely well-designed. Ethics in Design: > To design is to make ethical choices. In other words, [design](https://wiki.g15e.com/pages/Design.txt) is [ethics](https://wiki.g15e.com/pages/Ethics.txt). See also [History of deceptive patterns](https://wiki.g15e.com/pages/History%20of%20deceptive%20patterns.txt).