Difficulty of Changing majors within college

<p>I was accepted into general engineering with hopes of choosing a definitive major, since at the time I wasn't sure. I would just like to know what the process is of changing majors and is it not as difficult to change when already in the college of engineering instead of changing from undecided?
Also, is general engineering industrial and enterprise systems engineering? If so what are the types of careers found after receiving a degree?</p>

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<p>does that mean a major within the college of engineering?</p>