| id | name | years_of_experience |
|---|---|---|
| 1 | John | 20 |
| 2 | Anna | 30 |
| 3 | James | 25 |
| 4 | Emma | 28 |
| 5 | Michael | 27 |
| tool_id | tool_name | type |
|---|---|---|
| 1 | Software_Modeling | software |
| 2 | Road_Simulation | hardware |
| 3 | Vehicle_Tracking | hardware |
| 4 | Accident_Analysis | software |
| 5 | Signal_Optimization | software |
| engineer_id | tool_id |
|---|---|
| (→ Traffic_Engineers.id) | (→ Tools.tool_id) |
| 1 | 1 |
| 1 | 2 |
| 2 | 1 |
| 2 | 3 |
| 3 | 1 |
| 3 | 2 |
| 4 | 2 |
| 4 | 5 |
| 5 | 3 |
| 5 | 4 |
| 4 | 1 |
| 5 | 1 |