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You're getting near the end of the Design Process, but we want to make sure that your satellite is the best it can be. This is called:

Optimization.

Optimization is an engineering term that just means improving your design so that it better meets your criteria. Look at the criteria you wrote down in your notebook. How could you improve your satellite so that it better meets these criteria?

Watch out for something called suboptimization. This means improving one factor, but making the entire design worse. For example, you don't want your satellite to be really really cheap if it's going to break down as soon as it gets into orbit.

Don't forget, you can optimize your work from earlier steps. Just click on the step you want to return to using the Progress Bar.

After you write your changes down in your notebook, check off Step 5.