OSTAR designs and the production the entire series product all can use in the greatest degree by each person. Regardless of in the product outlook design, the use operation convenience and the writing illustration aspect, lets old as far as possible or moves about with difficulty the public figure comfortably to use. The universal design is refers needs to improve or specially to design can the product, the environment and the communication which uses for all people. It transmits the meaning is: How can have by the function the barrier the person use, can by all people use.
Seven principles： 1. Fair uses: This kind of design all cannot cause the damage to any use or cause it to be embarrassed. 2. Elastic uses: This kind of design covered has been widespread personally likes and the ability. 3. Simple and intuition use: No matter user's experience, the knowledge, the language ability or concentration, this kind of design use all very is how easy to understand. 4. Obvious information: How no matter periphery the condition or the use sense organ ability, this kind of design effectively has been transmitting the essential information to the user. 5. The allowable error: This kind of design and the disadvantageous result which because accidental or the nonchalant movement causes falls the danger to is lowest. 6. Reduces effort: This kind of design may effective, be comfortable and not take the trouble to use. 7. The suitable size and the space supply the use: No matter the user build, how the posture or the mobility, this kind of design have provided the suitable size and the space supplies the operation and the use.