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Several. Check out http://people.bu.edu/azs/teaching/cs108/2006fall/callback_pattern.pdf, and the following:
Visitor Pattern: http://en.wikipedia.org/wiki/Visitor_pattern
Observer Pattern: http://en.wikipedia.org/wiki/Observer_pattern
Strategy Pattern: http://en.wikipedia.org/wiki/Strategy_pattern
The most appropriate will depend on the situation. What programming language do you want to use and what do you want to do exactly?