Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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This diagram shows the entities and entity relationships. The diagram is used to model data after normalization steps are completed. What is the diagram called?
ORDER
orderid (PK)
orderDate
customerNo (FK)
1..*
makes
1..1
has
Use-case diagram
Pert/CPM chart
ER Model
Flowchart
1..1
1..*
ORDER DETAIL
orderid
orderitemNo
productNo (FK)
qty
CUSTOMER
customerNo (PK)
name
address
contact No
1..1
has ►
1..*
PRODUCT
productNo (PK)
prodtype
description
sku
price
qtyonHand
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Transcribed Image Text:This diagram shows the entities and entity relationships. The diagram is used to model data after normalization steps are completed. What is the diagram called? ORDER orderid (PK) orderDate customerNo (FK) 1..* makes 1..1 has Use-case diagram Pert/CPM chart ER Model Flowchart 1..1 1..* ORDER DETAIL orderid orderitemNo productNo (FK) qty CUSTOMER customerNo (PK) name address contact No 1..1 has ► 1..* PRODUCT productNo (PK) prodtype description sku price qtyonHand
Expert Solution
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Step 1

Entity Relationship Model, or ER Model, is a high-level conceptual data model diagram. To create a well-designed database, rigorous analysis of the data needs is assisted by the ER model. The ER Model depicts actual people, things, and the connections between them. Before deploying your database, it is recommended that you create an ER Model in a DBMS.

 

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