At Synectique, we are extending FAMIX to create our own entities. To guarantee our models are not filled in a bad way, we are defining constraints on property setters (with #assert: or testing and throwing an exception). The problem comes when we then export and load the .mse because the importer is not resolving things in a consistent order for our constraints. Does anyone knows if there is a mechanism to guarantee constraints except if the model is loading? Or at least to know if the model is currently being loaded? -- *Guillaume Larcheveque*