Model transformation is a fundamental operation for Model Driven Engineering. It can be performed manually or automatically, but in the later cas the developper needs to master all the meta-models involved. Model Transformation generation from examples allows to create a model transformation based on source models examples and target models exemples. Working at the model level allows the use of concrete syntaxes defined for the meta-models so there is no more need for the developper to perfectly know them.We propose a method to generate model transformations from examples using Relational Concept Analysis (RCA) which provides a set of transformation rules ordered under the structure of a lattice. RCA is a classification method based on matching links between models to extract rules. Those matching are a common feature between the model transformation generation from examples methods, so we propose a method based on an ontology matching approach to generate them.