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This review aims to analyze the available literature on IoT technologies and architectures relevant to Industry 4.0.

June 13, 2026IoTOpen Access

Internet of Things for Industry 4.0: A Systematic Literature Review of Technologies, Architectures, Applications, and Challenges

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Systematic review identifies key technologies and challenges in IoT for industry 4.0, suggesting future directions.

This review aims to analyze the available literature on IoT technologies and architectures relevant to Industry 4.0.
Conducted a systematic literature review using PRISMA 2020 across five databases for the years 2020–2025.
Screened 584 records, resulting in 96 peer-reviewed studies for detailed analysis.
Focused on technologies, architectures, applications, and challenges in IoT for industry 4.0.
Majority of studies employed a layered stack architecture incorporating sensing, industrial networking, and analytics.
Common communication technologies include MQTT, OPC UA, CoAP, LPWAN, and 5G, often aligned with digital twin and CPS integrations.
Significant barriers identified include interoperability issues, cybersecurity risks, and challenges in integrating legacy systems.

Haqiq et al. (2026) studied this question.

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