The RDML file format is developed by the RDML consortium and can be used free of charge. The RDML file format was created to encourage the exchange, publication, revision and re-analysis of raw qPCR data. The core of an RDML file is an experiment, not a PCR run. Therefore all the information is collected which is required to understand an experiment. The structure of the file format was inspired by a database structure. In the file are several master elements, which are then referred to in other parts of the file. This structure allows to reduce the amount of redundant information and encourages the user to provide useful information.