The basis of BioNumerics is a database consisting of entries. The entries correspond to the individual organisms or samples under study and are characterized by a unique key and by a number of user-defined information fields. Each entry in a database may be characterized by one or more experiments that can be linked easily to the entry.Vauterin L, Vauterin P. Integrated databasing and analysis. In: Molecular Identification, Systematics, and Population Structure of Prokaryotes (ed. Erko Stackebrandt). Springer, 2006. In BioNumerics, experiments are divided in seven classes:  fingerprints, spectra, characters, sequences, sequence read sets, trend data and matrices.
