(publication or distribution of a set of data from a survey)
The phrase data release (DR) is commonly used in conjunction with
surveys: meaning a publicly offered set of data
from the survey's observations, often after follow-up
clean-up, analysis and/or interpretation. If there
is additional observation to be carried out and/or more analysis, there
may be subsequent data releases, often identifying them as DR1, DR2, etc.
After the termination of the observation effort and follow-up,
a data release may be designated the survey's final data release.
Many surveys make their data available in such manner, e.g.,
the Sloan Digital Sky Survey (SDSS).