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1.2.1 Graphical Representation
HMSC also have a graphical representation that resembles automata. Beginning of the specifications are
represented with a downward triangle, end of specifications by an upward triangle. References to basic MSCs
or HMSCs are represetned with rectangles labeled by the name of the referred MSC, connectors by circles.
The graphical representation of the High level MSC one in previous example is depicted in Figure 4 below.
MSC ONE
Start symbol
Connector Node
M2
M1
H1
End symbol
Reference to
basic MSC / HMSC
Figure 4 Graphical representation for High-level MSCs