Design a device using criteria and constraints.

Designing should include 
•    clarifying the definition of the problem 
•    identifying criteria and constraints
•    using a design process.

Process/Skill Questions:

•    What is the device required to do?
•    How can one describe, in writing and sketching, the exact problem being addressed?
•    What is the difference between criteria and constraints?
•    What criteria and/or constraints must one address when resolving a problem?
•    What are common constraints in construction?
•    What are key criteria for tools being designed for medical use?