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Compose System Design
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SysML Design Model |
The SysML Design Model contains the blocks that define the system's composition; it describes the manner in which reusable subsystems fit together to fulfill the design requirements. The following diagram shows an example Design Model for a Portable Audio Player; the SysML Block Definition Diagram describes the Portable Audio Player as a composition of various reusable off-the-shelf subsystems and in-house designed ones.
In the example above, the Portable Audio Player is defined as a SysML system containing subsystems that perform specific tasks; the design contains subsystems for supplying power, performing playback and audio processing, interfacing with other devices and the user interface. Details of the Portable Audio Player's composition are further described in detail within the Portable Audio Player's Internal Block Diagram:
In this example, the Portable Audio Player's composition is described, detailing how each of the sub-systems is structured. It also describes the binding relationships between the parts, which describe how they are functionally bound to one another; for example, the CPU, Memory and Codec are interfaced together in the Processing Subsystem.
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