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LU03.A06 - ERM vs. ERD
ERM
- Description: First step to find the entities and the correlations between them.
- Purpose: Blueprint
- Similiarties
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ERD
- Definition:Identification of details, such as data-types, relation-table and the cardinality
- Purpose: technical plan, ready to construct the data base
| Purpose | ||
| Similaritiy | Notation method for data-base strucure in order to descripe business cases | |
| Differences |
Prerequisites
- Work type: Peer
- Means of aid: only teaching materials, no use of ai.
- Timeframe: 5 Minutes
- Expected result: A Word/PDF file with an a comparison of the terms ERM vs. ERD.
Task
Compare both terms, ERM and ERD, and describe the purpose of each, and find at least 3 similarities and 3 differences.
Solution
Vocabulary
| English | German |
|---|---|
| prerequisite | Grundvoraussetzung |
| given | gegebene, vorausgesetzt |
| blueprint | Entwurf |
Volkan Demir