Create an ERD in Crow's Foot or UML notation that can be implemented in the relational model using the following description of operations. Hot Water (HW) is a small start-up company that sells spas. HW does not carry any stock. A few spas are set up in a simple warehouse so customers can see some of the models available, but any products sold must be ordered at the time of the sale. • HW can get spas from several different manufacturers. • Each manufacturer produces one or more different brands of spas. • Each and every brand is produced by only one manufacturer. • Every brand has one or more models. • Every model is produced as part of a brand. Every manufacturer is identified by a manufacturer code. The company name, address, area code, phone number, and account number are kept in the system for every manufacturer. For each brand, the brand name and brand level (premium, mid-level, or entry- level) are kept in the system. • For each model, the model number, number of jets, number of motors, number of horsepower per motor, suggested retail price, HW retail price, dry weight, water capacity, and seating capacity must be kept in the system.
Create an ERD in Crow's Foot or UML notation that can be implemented in the relational model using the following description of operations. Hot Water (HW) is a small start-up company that sells spas. HW does not carry any stock. A few spas are set up in a simple warehouse so customers can see some of the models available, but any products sold must be ordered at the time of the sale. • HW can get spas from several different manufacturers. • Each manufacturer produces one or more different brands of spas. • Each and every brand is produced by only one manufacturer. • Every brand has one or more models. • Every model is produced as part of a brand. Every manufacturer is identified by a manufacturer code. The company name, address, area code, phone number, and account number are kept in the system for every manufacturer. For each brand, the brand name and brand level (premium, mid-level, or entry- level) are kept in the system. • For each model, the model number, number of jets, number of motors, number of horsepower per motor, suggested retail price, HW retail price, dry weight, water capacity, and seating capacity must be kept in the system.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:(a) Create an ERD in Crow's Foot or UML notation that can be implemented in the
relational model using the following description of operations.
Hot Water (HW) is a small start-up company that sells spas. HW does not carry
any stock. A few spas are set up in a simple warehouse so customers can see
some of the models available, but any products sold must be ordered at the time
of the sale.
HW can get spas from several different manufacturers.
Each manufacturer produces one or more different brands of spas.
Each and every brand is produced by only one manufacturer.
Every brand has one or more models.
Every model is produced as part of a brand.
Every manufacturer is identified by a manufacturer code. The company name,
address, area code, phone number, and account number are kept in the
system for every manufacturer.
For each brand, the brand name and brand level (premium, mid-level, or entry-
level) are kept in the system.
For each model, the model number, number of jets, number of motors, number
of horsepower per motor, suggested retail price, HW retail price, dry weight,
water capacity, and seating capacity must be kept in the system.
Note: Make sure that you include the attributes that able to show relevant
entities with all connectivity and cardinality.
2.
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