The root object is linked to the previous version of the model (Integration for IBM Rational DOORS)
A root object (the surrogate module or a surrogate object) links to a specific version of a model. If you create a new version of a Modeler model and you want a root object to link with that new version, you must synchronize the root object with the new version of the model from Modeler.
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The location of the linked Modeler model is stored in the ART Model Directory attribute of the root object (the surrogate module or a surrogate object).