NumSim is one of the precursor model metadata structures to the metafor common information model (CIM), and is currently in active use for transferring model and experiment descriptions between the Met Office and the BADC. As such it will be useful for providing instances which need to be reflected in the CIM.

Brief summary of key aspects of NumSim:

numsim uml

Along with the initial codelists:

NumSim codelists