Please help this total newbie

Will someone please define Parametric modeling in such a way that a
total neophyte would understand? I did look up the definition in Google,
but I believe one would need to be be a Cal Tech math major to
understand it.
2nd question: Can 2-d drawings be imported into SW to be extruded and
converted to 3-D, in lieu of doing the initial 2-d dimensioned drawing
in SW? What happens to the difference in format, .dwg to .sld?
Thanking you in advance,
Guido De Angelis
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Guido De Angelis
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I explained it pretty simply in my private email to you
What part don't you understand ????
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