My design criteria are divided to 2 main groups.
-1. External - Aesthetics characteristics
-2. Internal - Functional characteristics
For the first part - Aesthetics characteristics:
Form - the attraction between user and object, the level of joy and comfort the object gives its user during usage, and how the object affects the user's image in the eyes of the surrounding society.
Texture- It is a kind of a language and connection between user and object. it helps the user to use the object.It sometimes helps distinguish between objects or versions/types.
Color- As a cultural significance color is important. It is also a way to attract and convince the user to try and use the product.
The second part of the criteria - Functional characteristics:
Affordability - so that the designated user would be able to purchase / manufacture the product themselves.
Money saver / income generator - the product helps save money or generate a certain income by its function.
Cultural acceptable - the product does not change any cultural behavior, and it is acceptable among its user. the product integrates and adapts the existing cultural standards.
Durability & Physical Strength - designed for outdoors conditions, massive usage and hard handling. The product should survive and continue to function for a long determined period of time.
Portability - light, comfortable to carry and transport by hand or other low-tech possibilities.
Maintenance - The product / product's parts are replaceable or can be re-made by the user in a short period of time without any financial lost.
Environmental Sustainability - The materials used are all local, and the kinds that don't create a negative impact on the environment, even in a large production scale.
Energy - The product is based on a human energy source and not requiring any electrical / fuel consuming power source
User oriented product - the product should be easy to install / use. It shouldn't require any additional instruments to function.