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Ríomhairí, Ríomheolaíocht Teicníc í seo chun scrúdú a dhéanamh ar na teagmhais go léir a fhearann ar shonraí sa chóras, ag tagairt do na haonáin go léir ar a bhfearann gach teagmhas. Soláthraíonn sé trastagairtí idir LDS agus ELH trí chinntiú go gcruthaítear, go mionathraítear agus go scriostar gach aonán de thoradh teagmhas aitheanta; go contrártha, cinntíonn sé go bhfearann gach teagmhas aitheanta ar aonán amháin, ar a laghad.
Computers, Computer Science A technique to examine all the events that affect the data in the system, with reference to all the entities affected by each event. It provides cross-references between LDS and ELH by ensuring that all entities are created, modified, and deleted by identified events; conversely, it ensures that every identified event affects at least one entity.