Hermite Curve

What are the shortcoming of Hermite Curves?

They can't be found using google?

But i could not find it! Can you please give me the link!

But of course we have nothing to do as to sit here and search google for you:
http://www.google.co.il/search?as_q=...s=&safe=images

http://www.cs.brandeis.edu/~cs155/Lecture_10_6.pdf

Quote:

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Hermite Curves
• Main Drawback:
Requires the specification of the tangents
This information is not always available

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Thank you very much!