Question 15You are given the following clipping of a class diagram. Which of the following statements aretrue?groupeGroupPersonpersons0.0.1Owner0.1DKOR)nChargeotAppointment*participantsParticipantsReferenceA Non -of the aboveB There are groups that do not have any persons assigned.©An appointment can be made for multiple participants.D It is possible to navigate from an appointment to the person who is in charge of it.E all the aboveof

Answered: re given the following clipping of a…

Engineering

Computer Science

re given the following clipping of a class diagram. Wh roupe owner Person Group persons owner 0.1 prOR) nChargeof

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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Using UML class diagrams, create a design for the following (you can defer declaring the types for any instance variables and instance methods as long as you represent the concepts appropriately). NB: You may hand-draw your diagram or use a drawing program (your choice). Upload your finished answer for (a) and (b) as one file. (a) An Employer has one or more Employees. An Employee has exactly one Employer. Employees have attributes for their name, salary and job title (b) We are producing a vehicle registration system for the local DMV/RMV. Model the following using a UML class diagram. Read the entire specification before proceeding (this is ONE question, broken into 4 segments for readability): (i) Our interface (protocol/contract) IVehicle states that all vehicles can register() and calculateExciseTax(). These operations are public and the Vehicle contract is stable – it will not change. (ii) We think we’ll be able to take advantage of code-reuse, so your team must introduce an…
Question 4 This question assesses Block 2 Part 4. Parts a and b of this question involve creating drawings or descriptions. You can make your drawings whichever way is easiest or fastest for you. For instance, you could simply make your drawings using pencil and paper then scan or photograph them. Alternatively, you can answer by providing descriptions of the drawings. In that case, keep close to the formulations used in the long figure descriptions of the examples given in Section 4.5 of Block 2 Part 4. a.Consider the following lines entered on the Python shell: >>> Q4_TMA02 = 'submitted' >>> id(Q4_TMA02) 1944127298928 >>> type(Q4_TMA02) >>> Q4_TMA02 'submitted' Draw (or describe) the object and its label that the Python interpreter creates in response to the assignment Q4_TMA02 = 'submitted' in the interactive shell above. Your drawing or description should include a String object with a similar level of detail as Figure 4.14 in…
Question 4 This question assesses Block 2 Part 4. Parts a and b of this question involve creating drawings or descriptions. You can make your drawings whichever way is easiest or fastest for you. For instance, you could simply make your drawings using pencil and paper then scan or photograph them. Alternatively, you can answer by providing descriptions of the drawings. In that case, keep close to the formulations used in the long figure descriptions of the examples given in Section 4.5 of Block 2 Part 4. a.Consider the following lines entered on the Python shell: >>> Q4_TMA02 = 'submitted' >>> id(Q4_TMA02) 1944127298928 >>> type(Q4_TMA02) >>> Q4_TMA02 'submitted' Draw (or describe) the object and its label that the Python interpreter creates in response to the assignment Q4_TMA02 = 'submitted' in the interactive shell above. Your drawing or description should include a String object with a similar level of detail as Figure 4.14 in…
I need to draw a class diagram for problem described here: Five philosophers are sitting at a circular table sharing a meal. A fork is placed between each pair of philosophers and each philosopher needs two forks to eat, which means no two neighbours may be eating simultaneously.
Encapsulation in Java Implement getters and setters for the class in the code editor. Ask the user input for each attribute and use the setters to set the attributes. Inputs 1. Game Name 2. Year Published 3. Game Publisher Sample Output Enter game name: Genshin Impact Enter year published: 2020 Enter game publisher: Hoyoverse Genshin Impact is published on 2020 by Hoyoverse.
The Arrowhead for the Composite Aggregation relationship is: a. Open Triangle b. Filled Triangle c. Open Diamond d. Filled Diamond. The Association Label for the DCD describes how the objects will interact in the running program. In the DCD, this label represents: (select all that apply) e. Messages passing between the objects. f. Method Calls g. Instantiations h. Attribute Names Converting Class Diagram to Design Class Diagram involves: (select all that apply) i. Adding Methods. j. Changing Arrows k. Changing Association Labels. I. Changing Multiplicity. m. Adding Generalization. n. Adding Aggregation.
By using Creately tool, draw the class diagram corresponding to the following scenario:• Each university has one or more department• Each department has a chairperson which is a lecturer and surely it assigns others• Each course object maintains a list of the students on that course and the lecturer who has beenassigned to teach that course• The course has behaviour that allow the adding and removing of students from the course,assigning a lecturer, getting a list of the currently assigned students, and the currently assignedlecturer.• The “taughtBy” relationship shows that a Course only has a single lecturer, but that a lecturermay teach several Courses.• Each Lecturer object also maintains a list of the Courses that it teaches.• There is a similar relationship between Course and Student. A course is attended by zero ormore Students, and a Student may attend multiple courses.• Both Lecturer and Student are shown to be types of Person.
Draw the class diagram for IU library. An IU library has books, journals, and newspaper. These are the library items. All library material has an id_number and a title. Among all the materials, only books can be loaned to the IU students and staffs. Staff can borrow journals for their research. When a user’s (staff and students) borrows books, the librarian must scanned the card of IU users and record the borrower’s ID, loan date and return date. For users, the library maintains their name, ID and phone number. Each user has library card. Draw a class diagram for the description above. Make sure to show attributes, multiplicities and relationship, where appropriate.
Create your own UML diagram — similar to the above UML diagram — for a Pet class that meets thespecification below.1. Create the fields indicated below. Use these names exactly as given for your fields. Define them inexactly this order.• name — The name of the pet, e.g., “Rufus”, “Mittens”, “Smelly”, etc.• animal — The type of pet, e.g., “dog”, “cat”, “asparagus”, etc.• age — The (integer) number of years the pet has been alive, e.g., 1, 2, 3, etc.2. Create a mutator for each of the above in the order listed. Use the standard Java naming conventionfor mutators.3. Create an accessor for each of the above in the order listed. Use the standard Java naming conventionfor accessors.Example: Suppose you are taking the question for the example Car UML above instead of your Pet UML.Don’t enter any spaces at all.When the question asks: Enter line 1:You would enter: CarWhen the question asks: Enter line 2:You would enter: -make:StringWhen the question asks: Enter line 3:You would enter:…
Task 4 Develop a class diagram for following description: Develop a class diagram for following description: The telephone agent uses an order registry and customer catalog to obtain access to an order & a customer respectively. The order registry uses an order number as a qualifier to select particular order instance. A customer catalog uses customer name and phone number as a qualifier to select particular customer. The attributes of an order are the order numbers and time when it is placed. The order consists of many items. An item has item_number, a quantity, unit price. It also has reference to catalog item which represents listing. When an order is cancelled or corrmitted, it cancels or commits each of its items first. When an order's total price method is invoked, the order calls the total price method of each of items and returns the sum.
In a university there are different classrooms, offices and departments. A department has a name and it contains many offices. A person working at the university has a unique ID and can be a professor or an employee. "A professor can be a full, associate or assistant professor and he/she is enrolled in one department. •Offices and classrooms have a number ID, and a classroom has a number of seats. • Every employee works in an office. 1. Draw the class diagram for the scenario above
can you make ER Diagram with Crow`s foot method about library system. The rule: 1. A member can borrow more than one book at a time 2. A member can have more than one phone number 3. A book can have more than one author 4. All book registration, member and borrowing processes can only be done/served by officers 5. Data for books, members and officers are stored with a unique id, so no id is the same.