High practical use:
Utility fulfilment and functional durability.
2. Sufficient safety:
Foolproof. Avert injury danger if operate.
3. Durability and validity:
In accordance with aesthetic sense and physical life span.
4. Ergonomic adaptation:
Adaptation of the object to the physical measurement of the user.
5. Technical and formal identity:
6. Environmental Relationships:
Wise integration in the surrounding of the product. Aesthetic
and economic suitable of form, colour and material.
7. Pollution free:
Economic with energy and resources in produce and use, minimum
waste and maximum recycling.
8. Visual expression:
The product should inform about it's function.
9. High quality design:
A structural sound, unity, clear design elements, using material
for it's own merits.
10 A sensory and mental stimulant:
For the use it should arouse interest, motivation, interaction,
enjoyment and satisfaction.
("Well designed products"
Guideline from Museum of Modern Art, New York and from Unit German