Enhancing the UML with Shadows for agile development

Agile methodologies can be enhanced by the use of shadows as this feature because of its inherent ability to dynamically change the behavior of classes and objects, provides mechanisms to ease common tasks such as prototyping, deprecating, dynamic classification and interclassing at run-time. We feel however that shadows should be considered anotion beyond anyspecific programming languages, so that theycan as well be integrated in model-drivensoftware engineering. Therefore we introduce Shadows-UML, an UML extension, that would help to push forward the convergence between model-drivenand agile methodologies.