Digital twins are virtual models of physical objects, such as buildings, machines, and systems. Digital twins can be used to simulate and optimize performance, monitor and predict maintenance needs, and improve overall efficiency. Popular digital twin platforms include Siemens Digital Twin, IBM Digital Twin Exchange, and ANSYS Twin Builder. Discover the benefits Big data refers to extremely large and complex datasets that cannot be processed by traditional data processing applications. Big data is used in many applications, such as predictive analytics, business intelligence, and scientific research. Popular big data platforms include Hadoop, Spark, and Cassandra.