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SysML in Cradle

In SysML the different ‘types’ of elements used to specify a system or process are called stereotypes. A stereotype is like a Cradle item type used in the Requirements Management (RM) part of Cradle. The stereotype names are enclosed in « » symbols. In the following example five different types of elements are shown.

By themselves these elements have limited value, but once they are linked together using relationships the connected elements tell a story. In the following example there are four different kinds of relationship used to connect the elements to tell the story that an automobile has an Engine, it performs a Start Engine activity, it has a Max Speed variable, it inputs Radio Signals and outputs Exhaust Gas.

The SysML language includes nine diagram types used to model system concepts and architectures.  These diagram types are shown in the following figure.

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