Continued testing of system design with users is a principle of what practice?

The principle that emphasizes continued testing of system design with users falls under user-centered design. This practice is focused on involving users throughout the development process to gather feedback, understand their needs, and ensure that the final product is usable and meets their expectations. By continuously testing designs with users, developers can identify issues early, adapt their designs, and create solutions that are not only functional but also user-friendly and tailored to the actual workflow of the users.

User-centered design is characterized by its iterative processes, where cycles of prototyping, testing, and refining happen continuously based on user feedback. This approach leads to a more effective system that promotes better user satisfaction and adoption rates.

While other options like data analysis and system implementation play important roles in the overall development and deployment of systems, they do not inherently focus on user engagement and feedback as extensively as user-centered design does. Similarly, regulatory compliance pertains to meeting legal and industry standards, which is also distinct from the principles of engaging users throughout the design process.