Answer:
They failed to create, test, and retest a model.
Step-by-step explanation:
Technological design refers to the series of steps involved in developing a technology for use. Steps involved in the technological design include; identifying the problem, making research on it, proffering certain solutions, and choosing the best, developing a model, testing and refining the model, and then presenting the final solution.
The construction workers opened up the bridge even when they knew that the measures were ineffective. They did not create a model and test it thoroughly to confirm that it would work and was effective before launching the final solution. This oversight led to the collapse of the bridge.