3 The Engineering Design Process Free Online FlashCards

What is the engineering design process?

It is an iterative way to develop solutions: define a need, generate and select ideas, build and test a prototype, then improve the design.

What are design criteria?

Criteria are the features or performance a solution must achieve.

How should a team begin generating design ideas?

Brainstorm several approaches, using sketches, discussion, or combinations of ideas; encourage variety before judging options.

What should guide concept selection?

Compare ideas against the problem’s criteria and constraints rather than choosing only by personal preference.

What is a prototype?

A prototype is an early model used to explore or test a design.

How should engineers make test results comparable?

Keep test conditions as consistent as possible and record observations or measurements so results can be compared usefully.

What does iteration mean in engineering design?

Iteration uses feedback and test evidence to revise a design, build another version, and test again.

What are design constraints?

Constraints are limits on a design, such as cost, materials, size, time, or safety.

In the paper-bridge challenge, what is a constraint?

For the paper bridge, spanning a 20-centimeter gap and supporting washers are criteria; using no more than two sheets is a constraint.

How can a decision matrix help compare concepts?

A decision matrix lists criteria, weights more important criteria if needed, and scores each concept against them.

What is a limitation of a decision matrix?

A decision matrix supports a reasoned choice, but it does not replace judgment; uncertain assumptions should be tested.

What determines the form of a prototype?

A prototype need not resemble a finished product; its form depends on what the team needs to learn, from shape to performance.