Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 3, Problem 3.32PAE
Program Plan Intro
Draw the EERD for the RentQualityComputers(RCQ) based on the given information.
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Luxury-Oriented Scenic Tours (LOST) provides guided tours to groups of visitors to the Washington, D.C. area. In recent years, LOST has grown quickly and is having difficulty keeping up with all of the various information needs of the company. The company's operations are as follows:
LOST offers many different tours. For each tour, the tour name, approximate length (in hours), and fee charged is needed. Guides are identified by an employee ID, but the system should also record a guide's name, home address, and date of hire. Guides take a test to be qualified to lead specific tours. It is important to know which guides are qualified to lead which tours and the date
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need diagram only
Draw an ER diagram for the following scenario:
A designer has a store of designer dresses both for male and female.
People can buy as well as take dresses on rent from the store.
Each dress in the designer's store, is identified by unique ID.
A dress in the store can be categorized into various categories Western, Indian, Indo-westem, etc.
The designer maintains the name, phone number of people who have taken dresses on rent.
The designer also maintains the name, phone number, and address of people who have bought dresses from the store.
The designer also collects feedback from the people who have bought or taken dresses on rent from the store.
Design the ER diagram by mentioning all the structural constraints. You may also include additional information in addition to the requirements listed.
Make use-case diagram: The customer wants a system for bike racing registrations where Organizers of eventscan publish races, people who want to race can sign up and the system should also keeptrack of the old races to racers can "level up" and start in higher categories (cat).Racers who officially want to race need to sign up with the system with their name,credit card information. To be able to register for official races they need to buy alicence. The license is always valid for 1 year and has a specific ID and is for the racerscurrent level (cat). Racers are sorted into categories 5-1 where 5 is beginner and 1 isthe best category. Racers can only race in official events if they have the cat required,so they need to race against others their level.Organizers can create races. The interesting part is though that a race can consist ofdifferent stages. E.g. one stage is a road race, the other a criterium and the other atime trial (you can find what these are online). Each stage is on a…
Chapter 3 Solutions
Modern Database Management
Ch. 3 - Define each of the following terms: supertype...Ch. 3 - Match the following terms and definitions:...Ch. 3 - Contrast the following terms: supertype; subtype...Ch. 3 - State two conditions that indicate when a database...Ch. 3 - Prob. 3.5RQCh. 3 - Give an example (other than those discussed in the...Ch. 3 - What is the attribute inheritance? Why is it...Ch. 3 - Give an example of each of the following: a...Ch. 3 - What types of business rules are normally captured...Ch. 3 - What is the purpose of a subtype discriminator?
Ch. 3 - Prob. 3.11RQCh. 3 - In what ways is starting a data modeling project...Ch. 3 - Prob. 3.13RQCh. 3 - Prob. 3.14RQCh. 3 - What do you purchase when you acquire a packaged...Ch. 3 - In Figure 3-5b, why must the minimum cardinality...Ch. 3 - When is a member of a supertype always a member of...Ch. 3 - Examine the hierarchy for the university EER...Ch. 3 - Add a subtype discriminator for each of the...Ch. 3 - For simplicity, subtype discriminators were left...Ch. 3 - Refer to the employee EER diagram in Figure 3-2....Ch. 3 - Refer to the EER diagram for patients in Figure...Ch. 3 - Figure 3-13 shows the development Of entity...Ch. 3 - Refer to Problem and Exercise 2-44 in Chapter 2...Ch. 3 - For a library, the entity type HOLDING has four...Ch. 3 - A bank has three types of accounts: checking,...Ch. 3 - Refer to your answer to Problem and Exercise 2-4...Ch. 3 - Refer to your answer to Problem and Exercise 3-24...Ch. 3 - Prob. 3.29PAECh. 3 - Draw an EER diagram for the following situation:...Ch. 3 - Develop an EER model for the following situation,...Ch. 3 - Prob. 3.32PAECh. 3 - Prob. 3.33PAECh. 3 - Prob. 3.34PAECh. 3 - Based on the EER diagram constructed for Problem...Ch. 3 - Prob. 3.36PAECh. 3 - Prob. 3.37PAECh. 3 - Add the following to Figure 3-16: An EMPLOYMENT...
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