Introduction to TechnologyChapter 4:
Design and Problem SolvingChapter SummariesSection 4.1
The design of new products begins with an idea in someone’s mind. Invention is turning ideas into new devices. Innovation means modifying and improving existing ones. Engineering makes sure the product works well and is reliable. Designers follow certain principles: balance, proportion, contrast, and unity. Engineers test new designs on a model or prototype. Section 4.2
Problem-solving steps include defining the problem, collecting information, developing possible solutions, selecting one solution, putting the solution to work, and evaluating the solution. A problem statement clearly identifies the problem that a product will solve. The most important factors to consider when selecting a solution are the criteria and constraints.  | 
