Converters deliver functionality for advanced data transformation. There is a wide variety of converters depending on the required conversion signature; that is the specific data types supported as an input and output for the conversion to take place.
Converters provide a key functionality for DDC by allowing for advanced data transformation. Most pipeline components (sources, processors and sinks) depend of converters to shape the data flow. You will interact with converters always through a component, by configuring one or several chained converters that will help on the advanced handling of the data inside that component.