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Symbols and Lines in HMSC Diagrams


Symbols in HMSC Diagrams

Symbol Name Explanation

Start

The start symbol in an HMSC diagram. Is followed by a condition, reference or a condition point symbol.

Stop

The last symbol in an HMSC diagram.

Condition

Represents a system or process state, or indicates that a certain condition is true. Contains the name of the represented state or condition.

Reference

References another MSC or HMSC diagram in the same group of MSC diagrams. Contains the name of the other diagram.

Connection point

Splits or joins lines. One to many, many to one, or many to many.

Text

Contains comments relevant for the diagram. Is not connected to any other symbol.

Lines in HMSC Diagrams

Line Name Explanation

HMSC line

Defines how symbols can be traversed. Starts below the from-symbol and ends above the to-symbol. From-symbols can be start, condition, reference and connection point. To-symbols can be stop, condition, reference and connection point. To create the line, select a start, condition, reference or connection point symbol (a from symbol), and drag the line handle. To create a line endpoint, click in the diagram background. To attach the line to its final destination, click the symbol border.


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