SysML v1/UAF/UML Model Element Descriptions UAF 1.3 elements Current: Standard Standard DescriptionA ratified and peer-reviewed specification that is used to guide or constrain the architecture. A Standard may be applied to any element in the architecture.Architecture FrameworkUAF 1.3, DoDAF 2.0, MODAF, NAF, NAF 4.0ExtensionUML Class ×