TransducerML (Transducer Markup Language) or TML is a retired Open Geospatial Consortium standard developed to describe any transducer (sensor or transmitter) in terms of a common model, including characterizing not only the data but XML formed metadata describing the system producing that data.
The TML system description therefore automatically tags all fields, which can later be stored in a registry for discovery.
The data system description contains information about the specific transducers and components such as their behavior, responses to physical phenomena, sensitivity, and other operating parameters.
Regardless of the source of the data and its native complexity, metadata about the data generation system is readily at hand, and can be searched to discover specific systems of interest based on a number of criteria A key benefit to TML is that it enables correlation of measurements temporally by using a high-resolution clock tied to each individual data source, and models logical and physical relationships between multiple transducers in a system.
TML can process data from simple stationary in-situ transducers to high bandwidth dynamic remote devices such as a synthetic aperture radar system.