The Space Physics Archive Search and Extract (SPASE) consortium has defined a base
information model for describing scientific data and related resources. This document defines a set
of extensions for describing the simulation models, runs and the resulting data (numerical or
display).

The SPASE Simulation Extensions were originally developed by the Integrated Medium for
Planetary Exploration (IMPEx) project, a European Union (EU) Seventh Framework Programme
sponsored project, which was subsequently endorsed by the SPASE consortium.