Question#5 Transferthe followingverbal description into a unified ER model: a)A company produces articles (Mat-=), which are classifiedin consumables (wearparts) and systems (Ser#). b) Customers (Cust#) canbuy maintenance contracts forthese systems. c) Ifa defective systemis sent in by the customerto berepaired a repair order (Rord=)is created, and assignedto the serial number. This repairorderis specific only to one system. There are repair work centres (RWik=)usedby repair orders.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question#5
Transfer the following verbal descriptioninto a unified ER model:
a)A company produces articles (Mat-#), which are classified in consumables (wearparts) and systems
(Ser-#).
b) Customers (Cust-#) can buy maintenance contracts forthese systems.
c) Ifa defective systemis sent in by the customer to berepaired, a repair order (Rord#)is created, and
assigned to the serial number. This repair orderis specific only to one system. There are repair work
centres (RWik#)used by repair orders.
Transcribed Image Text:Question#5 Transfer the following verbal descriptioninto a unified ER model: a)A company produces articles (Mat-#), which are classified in consumables (wearparts) and systems (Ser-#). b) Customers (Cust-#) can buy maintenance contracts forthese systems. c) Ifa defective systemis sent in by the customer to berepaired, a repair order (Rord#)is created, and assigned to the serial number. This repair orderis specific only to one system. There are repair work centres (RWik#)used by repair orders.
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