What is a critical aspect to verify when assembling a system from multiple CE-marked devices?

The correct answer emphasizes the importance of mutual compatibility of devices when assembling a system from multiple CE-marked devices. In regulatory affairs and medical device integration, ensuring that all components of a system work together safely and effectively is paramount. Compatibility refers not only to physical dimensions and connections but also to functional interoperability, meaning that the devices can communicate and function without errors or safety issues.

When assembling a system, if devices are not mutually compatible, it could lead to malfunctions, which can jeopardize patient safety and violate regulatory standards. Additionally, compatibility can also influence the overall performance and intended use of the finalized product, which is critical for compliance with the relevant regulations.

The other options, while important in their own right, do not address the immediate concern of how devices work together as a cohesive system. Technical documentation alignment, regulatory approvals, and device labeling consistency each have their place in the regulatory process but would not directly ensure that the devices can operate together correctly.