| A | B |
|---|
| Functionality | the capability of a product, system, or process to fulfill its intended purpose over the course of its desired life span |
| Quality | the degree of excellence with which a product is made |
| Ergonomics | the science of adapting the work environment to people |
| Anthropometry | the science of measuring people |
| Aesthetics | Aesthetics is the study of the way something looks and how that affects people’s feelings about it |
| Maintainability | to ensure that the design allows access to certain parts for repair, and sometimes regular cleaning |
| Safety | A product, system, or process must be designed so it is safe for consumers to use |
| Life span | At the end of this, some products will fail to operate in the desired manner |
