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The SYSMOD profi le defi nes several
stereotypes for discipline-specifi c elements by way of example ( Figure 5.3 ).
Figure 5.4 shows a simple model for our example system concerning the attachment
of a card reader to the windshield of rentalCar (Figure 2.3). There are two
suction cups that hold the housing tight on the windshield pane. The mechanical
connection and the mechanical blocks are defi ned with a stereotype each.
bdd [package] SYSMOD profile [discipline-specific elements]
?«stereotype?»
Mechanical block
?«stereotype?»
Software block
?«stereotype?»
Hardware block
?«stereotype?»
OMGSysML::Block
?«stereotype?»
Mechanical
connector
?«stereotype?»
Software
connector
?«stereotype?»
Hardware
connector
?«metaclass?»
Connector
FIGURE 5-3
Discipline-specifi c elements.
275
ID and text, the properties defi ned in SysML for a requirement, are not suffi cient
in a specifi c project. The extended requirement shows how we can close this
gap. The properties introduced here are common, but not necessarily important
or exhaustive in every project.


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