models, mock-ups, samples, test versions, trial versions, pilot versions, experimental versions, concept versions
prüfen - ausprobieren - erproben - testen - kontrollieren - inspizieren - untersuchen - abprüfen - begutachten - evaluieren - überprüfen - checken
Testing is the systematic process of evaluating a product, system, or component to determine whether it meets specified requirements and functions as intended. It is widely used in software development, manufacturing, science, and education. In software, testing includes activities such as unit tests, integration tests, system tests, and acceptance tests to detect defects and ensure reliability, performance, and security. In other contexts, testing can mean assessing knowledge, checking the quality or safety of materials, or validating hypotheses in experiments. Overall, testing helps reduce risk, improve quality, and provide confidence in outcomes.