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Top-down Design of Distributed Embedded Systems in Light of Timing Considerations

Authored on: May 3, 2010

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Proper safeguarding of safety-critical systems in an automotive environment cannot be ensured sufficiently without taking timing into consideration. The failure to observe timing constraints can lead to malfunctions and, can cause vehicle damage and personal injury. AUTOSAR 4.0 now supports timing constraints, but the standard, still is not able to address all aspects and requirements for electric/electronic (E/E) architectural design. Alternative standards, EastADL2 and the Timing Extension (TIMMO) standard, have tackled this issue. By combining AUTOSAR with EastADL2 and the TIMMO timing language (TADL), it is possible to support a consistent, top-down design approach at both the functional and timing levels.

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