Two or more commercial Information Assurance (IA) products layered together to address the security requirements of an operational use case according to National Security Agency (NSA) guidance. A composed solution, once approved by NSA, may take the place of a single certified Government-off-the-Shelf (GOTS) IA product to provide the confidentiality and/or other security services necessary to protect National Security Systems.
Source(s):
CNSSI 4009-2015
from
CNSSI 4031