Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
| modul:m290:learningunits:lu03:aufgaben:a04 [2024/09/05 09:39] – angelegt vdemir | modul:m290:learningunits:lu03:aufgaben:a04 [2024/10/02 15:13] (aktuell) – vdemir | ||
|---|---|---|---|
| Zeile 1: | Zeile 1: | ||
| - | ====== | + | ====== |
| After developing our conceptional data model, the next step to establish a physical data base is shape a ERD, the Entity Relationship Diagram. | After developing our conceptional data model, the next step to establish a physical data base is shape a ERD, the Entity Relationship Diagram. | ||
| Zeile 13: | Zeile 13: | ||
| Below figure of a conceptual data-model illustrates | Below figure of a conceptual data-model illustrates | ||
| - | {{: | + | {{: |
| ==== Task ==== | ==== Task ==== | ||
| Zeile 19: | Zeile 19: | ||
| - develop the logical datamodel (tables, attributes, data types, fk/pk) by using the Crow's Foot Notation | - develop the logical datamodel (tables, attributes, data types, fk/pk) by using the Crow's Foot Notation | ||
| - | - realize the realation | + | - realize the relation |
| - finalize the ERM by adding the cardinalities (1:1, 1:many, ...) | - finalize the ERM by adding the cardinalities (1:1, 1:many, ...) | ||
| + | - | ||
| ===== Solution ===== | ===== Solution ===== | ||
| + | |||
| [[modul: | [[modul: | ||
| Zeile 31: | Zeile 33: | ||
| | prerequisite | Grundvoraussetzung | | | prerequisite | Grundvoraussetzung | | ||
| | given | gegebene, vorausgesetzt | | | given | gegebene, vorausgesetzt | | ||
| + | | mandatory | zwingend | | ||
| ---- | ---- | ||
| [[https:// | [[https:// | ||