Design

1. 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:
Avoid imitation.

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 Industry Designer.)