Rams introduced the idea of sustainable development and of obsolescence being a crime in design in the 1970s. Accordingly he asked himself the question: is my design good design? The answer formed his now celebrated ten principles.
- Is innovative - The possibilities for innovation are not, by any means, exhausted. Technological development is always offering new opportunities for innovative design. But innovative design always develops in tandem with innovative technology, and can never be an end in itself.
- Makes a product useful - A product is bought to be used. It has to satisfy certain criteria, not only functional, but also psychological and aesthetic. Good design emphasizes the usefulness of a product whilst disregarding anything that could possibly detract from it.
- Is aesthetic - The aesthetic quality of a product is integral to its usefulness because products are used every day and have an effect on people and their well-being.