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6.7 Comments
The following commentary types are supported:
Plain comment text
State description
Action description
The various comment types are distinguished from each other by a text
label identifying the type of commentary text.
Note that a plain comment has currently no signicant meaning for
SCED, i.e. it is ignored in any further processing. State and action descriptions are used in state diagram synthesis and are described shortly in
the following sections.
Plain comment box can be extended across several participant columns.
If there are more than one participant attached to a comment, the attached
participants are visually marked within the comment box.
6.7.1 States
By attaching states to a participant the user can specify state names to be
used in a state diagram. Synthesis of state diagrams will consider only those
states of a participant which are followed by leaving events (or actions).
In this case the leaving event will be the action part of this state in state
diagram. With states attached to a participant the user can make sure that
certain states will not be merged in synthesis by giving them dierent names.
6.7.2 Actions
Actions of a participant represent leaving events with undened receiver participant.
6.8 Subscenarios
In the place of an event line, another scenario can be referenced. Such a
scenario is called a subscenario. Semantically a subscenario reference means
that the contents of the referenced scenario is included at the place of its
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