Alto is properly the term for the second top part in four-part mixed-voice vocal writing. Applied to voices it means no more than can muddle their way through the alto part, which is not saying a whole lot, because the alto part is notoriously mind numbing (not that itâs not an essential part of the whole, or that weâre not grateful for the people who deal with it).
Longitudinal data system. Longitudinal data system is a data system capable of tracking student information over multiple years in multiple schools. The term appears in Federal law of the United States to describe such a system. Federal funding is provided to aid the design and implementation of such systems.
Part of the Customer data management glossary: A longitudinal study is an observational research method in which data is gathered for the same subjects repeatedly over a period of time. Longitudinal research projects can extend over years or even decades. In a longitudinal cohort study, the same individuals are observed over the study period. Cohort studies are common in medicine, psychology and sociology, where they allow researchers to study changes over time.