MARTE — Section: Annex B.2.4

Inconsistency between the VSL BNF and metamodel (Variable declaration) In the VSL annex, Figure B.4 (VSL::Expressions package) indicates that a Variable has "direction" property: VariableDirectionKind [0..1]. On the other hand, in the BNF, the <variable-direction> term is not between brackets, which means that it is a mandatory term. Proposed resolution: either we update the BNF or we change the multiplicity of the direction property in the metamodel.

As far as the variable direction is optional, as described in the metamodel, the grammar should be revised and modified with the brackets for the <variable-direction> term.