Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 2, Problem 2.29PAE
Program Plan Intro
An ER diagram for Shiny ShoesForAll (SSFA) based on the given requirements.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
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
that they completed the qualification test for each tour. A guide may be qualified to lead many different tours. A tour can have many different qualified guides. New guides may or may not be qualified to lead any tours, just as a new tour may or may not have any qualified guides.
Every tour must be designed to visit at least…
Design the UML class diagram to support the system below and upload a picture of your diagram.
Used Class Material Website:
You are designing a website where students can resale their used material for a course.
A course may have multiple sections.
The course material is specific to each section of a class.
Not all course may require class materials, but they may require many of them.
A student can have many used materials for sale.
The class material can be either:
· Textbook: which has a price(mandatory), title(mandatory), authors(optional), edition(optional)
· Software: which has a price(mandatory), title(mandatory), publisher(optional), and also its operating system (mandatory)
· Equipment: which has a price(mandatory), title(mandatory), description(mandatory)
All class material can be either available or sold.
Do a class diagram with:
1. all the classes ,
2. their associations
3. their multiplicity .
4. For each classes, where are the…
An E-learning website needs your help to design its database. They need to store information about teachers and online tutorials. Each teacher has a unique ID, name, and at least one field of specialty. Teachers form groups to prepare online tutorials. Each group has unique name and at least one teacher as a member. Each online tutorial has a title, date and organized by exactly one group. The title of the tutorial is unique for the group. Each tutorial consists of several sessions, described by their titles and durations. Naturally, each session is presented by one teacher and belongs to exactly one tutorial. In addition, sessions on the same tutorial have different titles.
Design an ERD for this application. Note any unspecified requirements, and make appropriate assumptions to make the specification complete.
Chapter 2 Solutions
Modern Database Management
Ch. 2 - Define each of the following terms: entity type...Ch. 2 - Match the following terms and definitions....Ch. 2 - Contrast the following terms: stored attribute;...Ch. 2 - Prob. 2.4RQCh. 2 - Prob. 2.5RQCh. 2 - Prob. 2.6RQCh. 2 - State six general guidelines for naming data...Ch. 2 - Prob. 2.8RQCh. 2 - Prob. 2.9RQCh. 2 - State three conditions that suggest the designer...
Ch. 2 - List the four types of cardinality constraints,...Ch. 2 - Give an example, Other than those described in...Ch. 2 - What is the degree of a relationship? List the...Ch. 2 - Give an example (Other than those described in...Ch. 2 - Give an example of each of the following, other...Ch. 2 - Give an example of the use of effective (or...Ch. 2 - State a rule that says when to extract an...Ch. 2 - Prob. 2.18RQCh. 2 - In addition to explaining what action is being...Ch. 2 - For the Manages relationship in Figure 2-12a,...Ch. 2 - Explain the distinction between entity type and...Ch. 2 - Why is it recommended that every ternary...Ch. 2 - A cellular operator needs a database to keep track...Ch. 2 - Prob. 2.24PAECh. 2 - Answer the following questions concerning Figure...Ch. 2 - Prob. 2.26PAECh. 2 - You may have been assigned a CASE or a drawing...Ch. 2 - Consider the two E-R diagrams in Figure 2-25 Q,...Ch. 2 - Prob. 2.29PAECh. 2 - Are associative entities also weak entities? Why...Ch. 2 - Because Visio does not explicitly show associative...Ch. 2 - Figure 2-26 shows a grade report that is mailed to...Ch. 2 - Prob. 2.33PAECh. 2 - The Is Married To relationship in Figure 2-12a...Ch. 2 - Figure 2-27 represents a situation of students who...Ch. 2 - Figure 2-28 shows two diagrams (A and B), both of...Ch. 2 - Prob. 2.37PAECh. 2 - Review Figure 2-8LQ and Figure 2-22. Identify any...Ch. 2 - Prob. 2.39PAECh. 2 - Prob. 2.40PAECh. 2 - Prob. 2.41PAECh. 2 - Prob. 2.42PAECh. 2 - Prob. 2.43PAECh. 2 - Prob. 2.44PAECh. 2 - Prob. 2.45PAECh. 2 - Prob. 2.46PAECh. 2 - Prob. 2.47PAECh. 2 - Prob. 2.48PAECh. 2 - Draw an ERD for the following situation. (State...Ch. 2 - Prob. 2.50PAECh. 2 - Prob. 2.51PAECh. 2 - Review your answer to Problem and Exercise 2-49 if...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- 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…arrow_forwardDraw a use case diagram based on the case study given below.Your diagram should contain at least 3actors, 8 use cases, and 2 include and 2 extend relationships. Shopping Made Easy System A customer uses Shopping Made Easy System for online shopping. System requires the customer to sign up and sign in to be able to interact with the system. Customer registration is verified by the administration. A customer may use the portal as a guest without signing up but is only able to view catalogues in case of a guest. A customer can manage his/her account which involves signup/sign in and profile management. A customer can browse through catalogues to view different products; customer can also search for a specific catalogue by name or code number. Customer can view the products and can log out without buying. Another main feature of the system is Shopping cart management. Customer can add or remove items in cart. Customer can check which items have…arrow_forwardCreate an ER model for a restaurant. The specifications are as follows: The customer has an id, name, address and telephone number. The customer can reserve a table before arrival. Each reservation has a unique key and includes the date and time of reservation and the number of seats. Upon arrival, the customer places an order. Each order has a unique order number and includes one or more food items. Each food item is distinguished by an id and has name and price. We also keep track of the cashier who settle the payment with the customer before he leaves the restaurant. The cashier has an id and name.arrow_forward
- Create a use case sequence diagram using the information below. Buy Parts Customer/Store Employee Description: This use case describes car parts dealer purchasing. Successful Finish: client requests vehicle component 2. Store associate verifies availability 3. component is available and client pays cost 4. Customer receives part; stock adjusted. 1. Customer asks auto part 2. Store Associate checks part availability 3. Part is unavailable and customer chooses to order part or no part 4. Customer receives part and stock is updated (if alternate part ordered) or leaves without part. Alternative: Customer wants component. No post-condition No assumptionsarrow_forwardA company makes items. Each item has a name, ID and component quantity. Every item contains many components. Each component can be supplied by one or more suppliers. Suppliers have names and IDS. Each component has ID, name, description, suppliers who supply them, and items in which they are used. Not all suppliers provide components, and a component is not always associated with a supplier. Also, a component always have to be associated with one or more items. Finally, the company contact customers using their IDs, Names and Phones to sell them items. A customer can buy one or more items.arrow_forwardDraw a use case diagram based on the case study given below.Your diagram should contain at least 3actors, 8 use cases, and 2 include and 2 extend relationships. Write an algorithm on how to withdraw money from an ATM. Shopping Made Easy System A customer uses Shopping Made Easy System for online shopping. System requires the customer to sign up and sign in to be able to interact with the system. Customer registration is verified by the administration. A customer may use the portal as a guest without signing up but is only able to view catalogues in case of a guest. A customer can manage his/her account which involves signup/sign in and profile management. A customer can browse through catalogues to view different products; customer can also search for a specific catalogue by name or code number. Customer can view the products and can log out without buying. Another main feature of the system is Shopping cart management. Customer can add or remove items in cart. Customer can…arrow_forward
- Draw an ER diagram that captures the following information: A book identified by (unique Id number, a title and one or more authors), A library identified by (unique name and adders), A borrower has a name and a unique ID code. The library service may own several copies of a given book. A borrower can have many books on loan, but each copy of a book can only be on loan to one borrower. A borrower could borrow the same book on several occasions, but it is assumed that each such loan will take place on a different date. *arrow_forwardCreate ERD an Entity and Relationship Diagram for the following application:The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of users Messager Personal information form: It contains a list of the user's personal data…arrow_forwardQuestion 3 Draw a detailed activity Diagram in draw.io and screenshot it for me. ( **Please take note is a detailed activity diagram) Scenario The exam unit uses the system after the subject registration period has closed. The system will display a list of subjects that have registered students. Using this list, the exam unit will plan out examination week. Examination week lasts 6 days, from Monday to Saturday. For each day, the exam unit will assign a subject to that day. Each day can have a total of 6 examination hours with subjects having 2- hour or 3-hour examinations. For example, if the subjects are 2-hour examinations, then 3 of them can be scheduled for the day and if the subjects are 3-hour examinations, then only 2 of them can be scheduled for the day. There can also be a mixture of 2-hour and 3-hour examinations. If the exam unit schedules too many examination hours for that day then the day resets and the exam unit needs to reschedule again. This process stops when…arrow_forward
- A college course may have one or more scheduled sections or may not have a scheduled section. Attributes of COURSE include Course ID, Course Name, and Units. Attributes of SECTION include Section Number and Semester ID. Semester ID is composed of two parts: Semester and Year. Section Number is an integer (such as 1 or 2) that distinguishes one section from another for the same course but does not uniquely identify a section. How did you model SECTION? Why did you choose this way versus alternative ways to model SECTION?arrow_forwardExercise 3: school system Each subject is owned by a department and each department is managed by a teacher, called Head of Department (HOD). Each department has a name and a unique code number. Each subject has a name, unique number and credit value. All teachers have a unique ID. A HOD cannot manage more than one department at a time. Also, a HOD does not teach subjects. A subject cannot be taught by more than one teacher. Finally, the system needs to know each student's contact details, including, full ID, address, age and gender, as well as date of enrolment in the subject. name, studentarrow_forwardUse the Information below and create a sequence diagram for the use case. Name: Buy Parts Actor: Customer/Store Associate Description: This use case describes the process used to buy parts at the auto parts dealer. Successful Completion: 1. Customer requests auto part 2. Store Associate checks on availability of part 3. Part is available and customer pays cost 4. Customer receives part and stock is adjusted 1. Customer requests auto part 2. Store Associate checks on availability of part 3. Part is not available and customer selects to order part or no part 4. Customer receives part and stock is adjusted (if alternate part ordered) or customer leaves with no part Alternative: Pre-Condition: Customer wants to purchase part Post-Condition: None Assumptions: Nonearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education