Logical Data Model

A logical data model (LDM) in systems engineering is a representation of an organization's data, organized in terms of entities and relationships and is independent of any particular data management technology.

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Famous quotes containing the words logical, data and/or model:

    Revolution
    Is the affair of logical lunatics.
    Wallace Stevens (1879–1955)

    Mental health data from the 1950’s on middle-aged women showed them to be a particularly distressed group, vulnerable to depression and feelings of uselessness. This isn’t surprising. If society tells you that your main role is to be attractive to men and you are getting crow’s feet, and to be a mother to children and yours are leaving home, no wonder you are distressed.
    Grace Baruch (20th century)

    Socrates, who was a perfect model in all great qualities, ... hit on a body and face so ugly and so incongruous with the beauty of his soul, he who was so madly in love with beauty.
    Michel de Montaigne (1533–1592)