Why Embedded Projects Can No Longer Be Designed Around Hardware Alone
In many industrial projects, embedded system selection still starts with hardware specifications. Processor performance, interfaces, design, and temperature range are often the focus of discussion. In practice, however, it is becoming increasingly apparent that a powerful box PC alone is no longer sufficient to operate modern embedded applications reliably and over the long term.
Current developments in the industry make it clear that embedded systems today must be considered as complete solutions. Power supply, reliability, software, security, and lifecycle management are becoming more important and are fundamentally changing the requirements for planning, design, and implementation.
How Hardware-Centric Design Introduces System-Level Risk
A clear signal from the industry is the trend toward integrated system solutions. Instead of individual components, approaches in which industrial PCs, power supply, and protection are designed together are increasingly coming to the fore. The reason is simple: in real industrial environments, it is not maximum computing power that determines the success of a project, but the stability of the overall system.
Voltage drops, power failures, or uncontrolled restarts can cause production downtime or jeopardize control processes. Accordingly, it is becoming clear that UPS concepts, controlled shutdown mechanisms, and a clean energy architecture are no longer optional extras, but must be an integral part of system design.
This development is also reflected in the thematic focus of leading industry platforms such as the embedded world Conference. There, system architecture, software governance, and security are now more in focus than individual hardware components. Embedded box PCs are increasingly understood as functional hubs within complex, networked systems.
Why Security Is Now an Integral Part of Embedded System Architecture
At the same time, the importance of IT and OT security is undergoing a fundamental shift. Attacks on industrial control systems and OT environments are on the rise. At the same time, risks are growing due to supply chain attacks and the use of AI-supported attack methods. As a result, embedded systems are becoming increasingly targeted.
Analyses by Kaspersky ICS CERT show that in recent years, security-related attacks have been detected or blocked in around one-fifth of industrial control systems. This underscores the fact that embedded systems are increasingly part of the attack surface, especially in networked OT environments.
Security cannot be added retrospectively. Instead, it is becoming increasingly clear that security must be taken into account in the system design from the outset. This includes clearly defined boot and update mechanisms, reproducible software builds, and controlled patch and maintenance concepts. In OT environments in particular, security measures mustn't impair operations and function reliably even under restricted update cycles.
How Regulatory Requirements Are Reshaping Embedded System Design
The Cyber Resilience Act and related standards such as IEC 62443 are further accelerating this development. Regulatory requirements no longer apply only to individual products, but to the entire embedded system throughout its lifecycle.
For embedded Linux, this means, among other things, the traceability of open source components in the form of a software bill of materials, structured vulnerability management, and long-term maintenance and updateability. The Linux Foundation and the Open Source Security Foundation also emphasize that transparency about software components, clearly defined security processes, and long-term maintainability are key prerequisites for the secure use of embedded Linux.
These requirements cannot be meaningfully met if hardware, software, and operation are considered separately.
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Why System Integration Is Becoming a Core Competence in Embedded Projects
All these developments paint a clear picture. The success of modern embedded projects depends less and less on individual hardware features and more on the ability to design and operate complex systems holistically.
In this context, system integration means more than just bringing components together. It encompasses the conscious design of an overall architecture and takes technical, organizational, and strategic aspects into account in equal measure. These include maintainability, expandability, and compliance with regulatory requirements. For users and operators of industrial systems, it is therefore becoming increasingly important to evaluate embedded solutions in the context of the entire system.
Conclusion: Designing Embedded Projects Holistically
Embedded box PCs remain a central element of industrial applications. However, their real added value only becomes apparent when they are part of a well-designed overall system. Current developments in the areas of security, energy supply, and regulation clearly show that holistic system thinking is not an option, but a prerequisite for future-proof embedded solutions.
System integrators such as Aaronn support companies in designing and implementing embedded box PCs not as individual components, but as part of a holistic system architecture.
For readers who are looking for a structured basis for decision-making with checklists, evaluation criteria, and practical recommendations, we summarize this content in our white paper on embedded box PCs.
The white paper is available for download here:
Sources
Selected industry reporting referenced in this article:
The requirements by the Cyber Resilience Act (CRA) which are already effective will be a big differentiator in terms of availability and operation through the whole lifecycle. Security and efficient maintenance (including providing fixes and updates) are key to reliable duty of the system. It's great if all components in a system bring building blocks to be CRA ready, for example the embedded computer which is inside.
In many projects, architectural risks only become visible once systems scale or enter long-term operation. Where do you see the biggest system-level challenges today? Security integration, lifecycle management, power design, or something else? Curious to hear different experiences.