The more parts and connections a system has, the more ways it can go
wrong. Complex systems usually have components to detect, back up, bypass,
or compensate for minor failures.
| NSES Content Standard E
Science and Technology: Understandings about science and technology Grades 5-8, page 166 Perfectly designed solutions do not exist. All technological solutions have trade-offs, such as safety, cost, efficiency, and appearance. Engineers often build in back-up systems to provide safety. Risk is part of living in a highly technological world. Reducing risk often results in new technology. |