is specified output of has measurement value measurement datum scalar score from composite inputs 1 A measurement datum which is the result of combining multiple datum. For example, a mean or summary score. Person: Jessica Turner scalar score from composite inputs questionaire score JT: We included this because we wanted to talk about an output from a questionnaire that summarized the answers to the questionnaire, but which was not actually the answer to any single question. JZ: can we defined it logically as the output of some data transformation, like aggragate data transformation? Person: Jessica Turner data transformation metadata complete