Which technology enables smart components to gather real-time data about physical items?

Digital Twin technology is the correct choice as it specifically refers to the digital replica of physical entities, processes, or systems. This technology allows for the creation of a virtual model that mirrors the state and behavior of a physical object. By utilizing real-time data gathered through sensors, Digital Twin technology enables the monitoring and analysis of physical items, which can lead to better insights, predictive maintenance, and enhanced decision-making.

The interaction between the physical and digital worlds through Digital Twin technology is particularly valuable across various industries, such as manufacturing, healthcare, and smart cities. This capability of gathering and analyzing real-time data differentiates Digital Twin technology from the other options listed.

Artificial Intelligence and Machine Learning are more about analyzing data and learning from it rather than specifically gathering real-time data. Blockchain technology focuses on secure and transparent data sharing but does not provide the means to gather real-time information from physical items.