# Safety-Oriented System Hardware Architecture Exploration in Compliance with ISO 26262
## 4 Safety-Oriented System Hardware Architecture Exploration Framework
### System Hardware Architecture Exploration with Safety and Hardware Overhead Consideration
#### 4.3.2. ASIL-Oriented Hardware Architecture Exploration Algorithm
Through the proposed FTA-based weak-point analysis and safety-oriented fault-tolerant design methodologies, we have shown how to effectively apply safety mechanisms to the system design so that the required ASIL can be achieved with the required hardware overhead constraint. We successfully overcome the high design complexity challenge of fault-tolerant hardware design and kept the number of design iterations low enough to make the approach feasible and effective in real cases. Besides, the proposed methodologies are very suitable to be implemented in an EDA (Electronic Design Automation) tool. Integrating our design framework into an automotive design tool chain will be our next work to be accomplished. Conceptualization, K.-L.L. ; methodology, K.-L.L. and Y.-Y.C. ; validation, K.-L.L. and Y.-Y.C. ; formal analysis, K.-L.L. and Y.-Y.C. ; investigation, K.-L.L. and Y.-Y.C. ; writing--original draft preparation, K.-L.L. ; writing--review and editing, Y.-Y.C. ; supervision, Y.-Y.C. ; project administration, Y.-Y.C. ; funding acquisition, Y.-Y.C. All authors have read and agreed to the published version of the manuscript. This research was funded by the MOST academic research project under Contract Number 108-2221-E-305-004-MY2. Not applicable. The authors acknowledge the support of MOST academic research project under Contract Number 108-2221-E-305-004-MY2. The authors declare no conflict of interest. ## References

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