A data model is independent of hardware or software constraints. Rather than try to. represent the data as a database would see it, the data model focuses on representing the. data as the user sees it in the real world.
International AIED Society. AIED is an interdisciplinary community at the frontiers of the fields of computer science, education and psychology. It promotes rigorous research and development of interactive and adaptive learning environments for learners of all ages, across all domains.
This article is about the Latin phrase. For the physical theory, see quantum electrodynamics. For other uses, see QED (disambiguation). Q.E.D. (also written QED) is an initialism of the Latin phrase quod erat demonstrandum, meaning what was to be demonstrated, or, less formally, thus it has been demonstrated.