ENTITY-RELATIONSHIP MODEL
\ˈɛntɪtiɹɪlˈe͡ɪʃənʃˌɪp mˈɒdə͡l], \ˈɛntɪtiɹɪlˈeɪʃənʃˌɪp mˈɒdəl], \ˈɛ_n_t_ɪ_t_i_ɹ_ɪ_l_ˈeɪ_ʃ_ə_n_ʃ_ˌɪ_p m_ˈɒ_d_əl]\
Sort: Oldest first
-
An approach to data modellingproposed by P. Chen in 1976. The model says that you divideyour database in two logical parts, entities (e.g. "customer","product") and relations ("buys", "pays for").One of the first activities in specifying an application isdefining the entities involved and their relationships,e.g. using an entity-relationship diagram to represent amodel.["The entity-relationship model: toward a unified view ofdata", P.P. Chen, ACM Transactions on Database Systems 1:1 pp9-36, 1976].
By Denis Howe
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.
Nearby Words
- entitled
- entitlement
- entitling
- entitule
- entity
- entity-relationship model
- ento
- ento-
- entoblast
- entoblastic nucleus
- entobranchiate