The SE-Toolkit provides tools to analyse and manipulate the model of the SOI. The model is independent of its representation - which means that any view of the model is rendered from a defined viewpoint, and the rendered view is not the model (in the same way that a photograph of an aircraft is not the aircraft itself). It also means that the model is independent of the way it is stored...
The Systems Engineering Toolkit is a set of tools and platforms for engineering systems better, thereby enabling systems engineers to engineer better systems.