About Design

I am a freshman in architecture major.
I was thinking about doing minor or just switch my major to Industrial design.
Since Design 200 is the pre-requisite course for Industrial design, I just want to take the course and see if i'm going to like it or not.
I consider myself as a creative person. I think that designer is a very cool job.
I saw some design works online, most of them are closely relate to our daily life. I think that a good design  makes people's life become more efficient and colorful.
Well, through Design 200, I want to get a general idea of what is design, what kind of work can be considered as a good design, and how can I form a designer mind.