Design Principles
Functionality - refers to the capability of products, systems, or process to fulfil its intended purpose over the course of its desired life span.
Quality - is the degree of excellence with which a product is made
Ergonomics - is the science of adapting the work environment to people. Most often designers accommodate the middle range of body sizes. Ergonomic designs strive to provide safety and accessibility to all types of people.
Safety - the product of service should cause no harm, even after failure. When technological solutions have potentially negative effects, people must decide whether the solution's benefits outweigh its risks. Designer try to keep risk as low as possible.
Aesthetics - is the study of the way something looks and how that affects people's feelings.
Maintainability - how well the product can be keep working in like new condition.
Form and Function
Balance - the impression of steadiness.
Unity
Proportion - size relationship between one part to another.
Contrast
Rhythm - (repetition) certain elements are repeated.
Color
Formal - when a line is drawn down the center, the two halves are similar to one another.
Informal - may look different, but has equal impact on the eyes.
Variety - various elements
Emphasis - making one element stand out from the other elements.
Harmony - all elements of the design look as if they belong together.






