The present invention relates to a data-processing technology allowing data to be recognized as a being, i.e. an organism having life, by applying, to all digital data, a birth/old-age/sickness/death concept derived from nature and giving the time-limited functions of naming, changing, and extinction to the digital data which has traditionally been recognized by the attributes of perpetuity and infinite replication and reproduction with complete fidelity. More particularly, the present invention relates to a system allowing a user to easily determine data maintenance and deletion by managing the history of data distribution and representing the current state of use of the data through an aging effect (i.e. becoming old, gray, sick, or recovering), which applies to living things in nature.