Lab 3 was designed to help the team prepare to create a final design. The team learned how to analyze a design by using a screening matrix and a scoring matrix. Each characteristic of the AEV prototype and the other AEV designs were given a rating. By using the matrix, the team analyzed the strength of each design and were able to compare the designs to each other!
All designs seen in Lab 1 were tested and scored, along with the Sample AEV Design provided by the instructional staff. The matrices used to score the designs can be seen below.
Concept Screening Matrix:
| Success Criteria | Reference | Design A | Design B | Design C | Design D | Design E |
| Balance | – | + | 0 | 0 | + | 0 |
| Weight | 0 | + | + | – | 0 | – |
| Center-of-Gravity Location | 0 | 0 | – | – | – | 0 |
| Energy Consumption | 0 | – | 0 | 0 | 0 | – |
| Appearance | – | + | 0 | + | – | + |
| Cost | 0 | 0 | + | 0 | 0 | 0 |
| Sum +’s | 0 | 3 | 2 | 1 | 1 | 1 |
| Sum 0’s | 4 | 2 | 3 | 3 | 3 | 3 |
| Sum -‘s | 2 | 1 | 1 | 2 | 2 | 2 |
| Net Score | -2 | 1 | 1 | -1 | -1 | -1 |
| Continue? | No | Yes | Combine | Revise | No | No |
Concept Scoring Matrix: