This Recommendation defines the graphical presentation format for the TTCN-3 core language as
defined in [ITU-T Z.161]. This presentation format uses a subset of Message Sequence Charts as
defined in [ITU-T Z.120] with test specific extensions.
This Recommendation is based on the core TTCN-3 language defined in [ITU-T Z.161]. It is
particularly suited to display tests as GFTs. It is not limited to any particular kind of test
specification.
The specification of other formats is outside the scope of this Recommendation.