The purpose of the ScaleDL Usage Evolution is to enable modelling of how the load and work of a system evolves over time. The tool is Eclipse based, and provides a simple tree-based editor. ScaleDL Usage Evolution provides a thin modelling layer that expresses how the evolution of a set of variables applies to a usage model expressed in the Palladio tool. The actual modelling of the evolution of a single variable (e.g. arrival rates or population in load or average video size in work) is done using the LIMBO Load Intensity Modeling Tool.

The tool is based on the Eclipse Modelling Framework (EMF) and is built on an Ecore meta-model. The tree-based editor is generated from the meta-model and an EMF genmodel using the EMF facilities.