RAAML11 — The treatment of GSN in RAAML

The GSN Community standard and metamodel, as of version 2 of GSN, are based on extending OMG’s Structured Assurance Case Metamodel (SACM) version 2. In a sense, all GSN elements are sub-classes of elements defined in SACM so that tools supporting GSN can leverage the SACM metamodel for exchanging GSN content. The material in RAAML that discusses GSN and define RAAML GSN constructs does not reflect this approach and appears at odds to the GSN community standard and its use and leveraging of OMG’s SACM standard.

*RAAML provides a translation to SCSC GSN *

RAAML provides a translation from GSN notation on top of custom metamodel of SACM to SCSC GSN notation on top of UML metamodel plus profile. The RAAML group believes that this translation faithfully represents the GSN core part of SACM. In the future if the SCSC GSN and/or SACM changes then it can be reflected in RAAML.