hi, Model is very generic word. Many technologies used model word in different meaning. What technology are you looking for?

https://goldpractice.thecsiac.com/practices/mbt/ http://www.conformiq.com/model-based-testing/

http://en.wikipedia.org/wiki/Model-based_testing http://www.etestinghub.com/testing_models.php http://www.qatutorial.com/?q=Software_Testing_Models

Answers

What is a model?