What is Korean Wave? Korean Culture or Korean Trend?

PNP Forum's next theme on March 12th is "Korean Wave."
Before Forum, we need pre-understanding of "Korean Wave." So I would like to share Wikipedia's explanation, the free encyclopedia for "Korean Wave."

Please visit this URL:
http://en.wikipedia.org/wiki/Korean_wave

And, visit below URl also understanding for Korean Culture:
http://koreareport2.blogspot.com/search/label/Culture

So, let me ask about "Korean Wave"
Is it a part of Korean Culture or All of Korean Culture?
Is it a trend in globalization of Korean Pop Art?

Share your idea and thinking, please.