DTM

DTM commonly refers to the Deutsche Tourenwagen Masters, a premier German touring car racing championship. The series traces its origins to the Deutsche Tourenwagen Meisterschaft of the 1980s and was rebranded as DTM in 2000. It has featured factory-backed teams from manufacturers such as Audi, Mercedes-Benz, and BMW, and holds races across Germany and other European venues. The competition is organized by ITR e.V. and has undergone various regulatory changes over the years, including shifts in car design and racing format.

DTM also stands for digital terrain model, a digital representation of ground surface topography used in geospatial analysis. A DTM models elevations of the bare Earth, excluding natural and built features. It is used in hydrology, surveying, urban planning, and 3D visualization. DTMs are derived from sources such as LiDAR or photogrammetry and can be generated as gridded rasters or irregular triangles, often alongside digital elevation models (DEMs) and digital surface models (DSMs) for comparison.

DTM can refer to desktop music, a term used particularly in Japanese media to describe music production conducted on personal computers. It encompasses digital audio workstations, software synthesizers, sample libraries, and MIDI controllers, enabling users to compose, arrange, and produce music without hardware-era constraints. The term underscores a culture of home and project-based music creation and sharing within online communities.

DTM also stands for decision tree model in statistics and machine learning. A DTM is a predictive model that uses a tree-like structure of decision rules to classify data or predict outcomes. It is valued for interpretability and is commonly used in data mining, risk assessment, and decision-support systems. Variants include decision trees grown by algorithms such as CART, C4.5, or CHAID.