This information is part of the Modelica Standard Library maintained by the Modelica Association.

In this package annotations are described. Annotations are intended for storing extra information about a model, such as graphics, documentation or versioning. A Modelica tool is free to define and use other annotations, in addition to those defined here. The only requirement is that any tool shall save files with all annotations from this chapter and all vendor-specific annotations intact. To ensure this, annotations must be represented with constructs according to the Modelica grammar. The Modelica language specification defines the semantic meaning if a tool implements any of these annotations.