What is the process a set designer takes when designing a set?

Here is just one way of going through the process:

Read the script.

Have your first meeting with the director.

Read the script again and do research.

Start sketching.

If you can choose a design, model it in 3-D, in scale.

Show the model and some drawings to the director.

Go home and rework your model.

Draw your plans.

Explanation:

i think the life is invaluable.

you can also say immeasurable.