International Journal on Science and Technology

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Software Update Architectures for Embedded Automotive and Consumer Systems: A Policy-Driven Architectural Recommendation Framework

Author(s) Vignesh Alagappan
Country United States
Abstract Software update systems in embedded and automotive domains have evolved from simple firmware delivery mechanisms into distributed governance and execution platforms. Modern systems must operate under intermittent connectivity, power instability, heterogeneous hardware, and in automotive systems, safety-critical operating conditions constrained by functional safety standards such as ISO 26262 and in-vehicle networks governed by protocols including Controller Area Network (CAN) and Automotive Ethernet. This paper synthesizes two decades of cross-industry experience spanning automotive infotainment platforms, manufacturing IoT systems, and connected consumer products to present a comprehensive policy-driven architectural framework for software update systems. The framework treats Over-the-Air (OTA) updates as a distributed control problem requiring coordinated governance across cloud and device domains, introducing dual governance layers, cryptographically signed deployment intent aligned with ISO/SAE 21434 cybersecurity requirements, local rule enforcement mechanisms, transactional update execution patterns, and two-hop OTA distribution architectures for vehicle systems compliant with AUTOSAR specifications. An architectural recommendation model guides system designers in selecting appropriate update patterns and governance depth based on operational constraints, safety criticality, and regulatory compliance requirements. This work bridges theoretical safety and security frameworks with practical implementation patterns validated across multiple production systems managing millions of connected devices.
Keywords Software updates, over-the-air (OTA) updates, automotive systems, embedded systems, IoT security, policy-driven architecture, ISO 26262, ISO/SAE 21434, AUTOSAR, firmware updates, distributed systems.
Field Engineering
Published In Volume 17, Issue 1, January-March 2026
Published On 2026-03-11
DOI https://doi.org/10.71097/IJSAT.v17.i1.10807
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