Duplication in Model Elements

Interesting idea. If you are using Model-Driven development, how would you know that you have duplicates in your models? are you aware that this may be a source of many issues? If yes, are you aware that you have duplicates? If yes, are you doing anything about it?

I came across a paper talking about this: Clone Detection in Automotive Model-Based Development. The author has implemented an algorithm to detect clones in models. It is interesting that the results of the study shows that 37% of the model elements duplicated at least once!

Model clones highlighted in red and light blue