The digital twin is an emerging technology which is being discussed in various fields and thus has numerous meanings and use cases. The concept is based on modeling assets with all their geometrical data, kinematic functionality, and logical behavior using digital tools. The digital twin is directly related to the physical asset and allows it to be simulated, controlled, and improved. According to Gartner, \u201ca digital twin is a virtual representation of an entity such as an asset, person, or process and is developed to support new or enhanced business objectives. The three types of digital twins are discrete, composite, and organizational. Required elements to meet business objectives are model, data, a one-to-one association, and monitorability, optional elements are analytics, control, and simulation.\u201d<\/p>\n