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The stereotype name ?«block?» can also be omitted in the notation. Note
that I always show it in this book to emphasize the difference to an UML class.
The single compartments of the block rectangle are denoted with a heading
each ( Figure 4.29 ). The heading for values of the block is values . Values are attributes
with either an UML data type or a SysML value type. For example, the value
operatingTemperature in Figure 4.29 has an interval as its distribution defi nition.
244 CHAPTER 4 SysML??”The Systems Modeling Language
The heading for parts of a block that are bound by means of a composition is
parts . Properties that are of type block but not bound via composition are listed
with the heading references in a compartment. These are properties, for example,
which are modeled by aggregation or association, such as card of type customer
card in Figure 4.29 and Figure 4.30 , respectively.
If differentiating compartments in the representation is not desired, then properties
of any type can be listed with the heading properties in a compartment.


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