Question

there is not always one clear solution to an engineering problem. after the criteria and constraints of a problem have been defined, engineers brainstorm ideas for solutions. after the brainstorming step you have several designs you think will meet the criteria and constraints. you test one or two designs to see if that is true. then you can modify or combine solutions to develop a better solution.
for example, imagine your class is planning a field trip to study a stream ecosystem. part of your study includes analyzing the water quality of the stream using probeware similar to that shown in the photo. eight sets of probeware will be used by the class. it is not possible to drive directly to the stream, so you need to carry the fragile equipment from the school bus. the distance from the bus parking lot to the stream is a quarter mile. defining this transportation problem using criteria and constraints and then prioritizing the criteria will help develop a solution.

1. using a scale of 1 - 5, identify the importance of each criterion of the transportation problem.

must be easy for a student to use, carry, or hold
must not damage the electronic equipment
must be revsable
must be inexpensive
must not be damaged by being used on a rocky trail

Explanation:

1. Must be easy for a student to use, carry, or hold: Since students will be transporting the equipment, this is highly important. Rating: 5.
2. Must not damage the electronic equipment: The equipment is fragile and expensive, so protecting it is crucial. Rating: 5.
3. Must be reusable: For long - term practicality and cost - effectiveness, reusability is important but not as critical as the first two. Rating: 3.
4. Must be inexpensive: While cost is a factor, it is secondary to protecting the equipment and ease of use for students. Rating: 2.
5. Must not be damaged by being used on a rocky trail: Given the terrain, this is important for the durability of the transportation method. Rating: 4.

Answer:

Must be easy for a student to use, carry, or hold: 5
Must not damage the electronic equipment: 5
Must be reusable: 3
Must be inexpensive: 2
Must not be damaged by being used on a rocky trail: 4