The FeatureMapper Update Site. The FeatureMapper is a tool approach to combine Software Product Lines and Model-Driven Development. It allows for defining mappings between features from feature models and arbitrary Ecore-based models. To keep track of those mappings, various visualisation techniques are provided, such as Realisation View, Variant View, and Colouring View. In addition to that, the FeatureMapper allows for interpretation of mappings and provides an extensible infrastructure for automatic product derivation. FeatureMapper Core. FeatureMapper EMFText Integration.