Q14) How do you model the following situation with a UML2 class diagram:A fitness center consists of several sectors. One sector may be divided into several sectors which mightas well be divided into sectors and so on.ASectorBname+sector-partSectornamesector-parts: {...}Sectorname+sector-part*0..1D0.01SectornameEF+sector-partA, b, c, d are wrongA, b, c, d are correct

option A is correct these type of model is reflexive association and aggregation.Explanation: Answer…

Answered: Q14) How do you model the following…

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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Introduction The Object Oriented software model is designed to create a new data type by using the Class structure. Therefore the various operations which define a data type, such as the common operators, assignment, etc., have a software architecture available to create those operations and data types. Assignment Description This assignment is an exercise in creating a complete class definition. A standard way to do that is to use a math data type. Here we define a Rational Number data type in a class called “Rational”. The distinctive feature of this type is the data is kept as numerator and denominator throughout all operations; there is no floating point representation used. The standard math operations, addition, subtraction, etc., are implemented, including the iostream overload. The student will not only come to understand what is required for a complete representation of such a type, but also learn about the internal mechanics of its C++ implementation. The student will be…
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.
Explain the following UML ClASS DIAGRAM
A company its composed of departaments.The departaments are located in one or more officies.One of them is the main office.Each departament has a manager which is selected out of employees. a) draw a diagram class which constains all the system classes,their attributes,relations between classes,specife the complexity and other elements you find relevant. b) write a java code which constains attributes of classes,acces operations to those.write a main class that would be an instance of the components of company,establish the relation between those and will print the structure of the company.
In UML class diagram given below, which attributes and behaviors of the Animal class would be inherited by the Dog class? Animal int # numberOfLegs: # numberOfTails: int # name: String + walk() + run() + eat() + playFetch() Dog A None of the attributes and behaviors are inherited B numberOfLegs, numberOfTails, walk(), run(), eat() (c) All attributes and behaviors of Animal are inherited playFetch()
Read the following description carefully: In a Course Management System, the class Course has the following attributes: courseCode, courseName, credit and courseType. Both the courseCode and courseName are String and their length can be of maximum 6 and 30 respectively. Courses can be of either Theory or Lab in type. What should be the data type of credit and course Type, so that an object of Course does not occupy more than 75 Bytes? Q. Data Type for credit and courseType should be______ and _______?
Create a UML Class Model based on the requirements . Your Class Model is to include: All classes Attributes and Attribute Types Associations Multiplicity Primary and Foreign keys Any Inheritance, Composition or Aggregation. Building Maintenance system. A rental property management company wants to develop a ‘Building Maintenance System.’ This system will be used by the company to manage maintenance requests from tenants in the several rental buildings that it manages in the city. Each building has a maintenance manager. The maintenance manager is responsible for creating accounts in the system for each tenant in their building. A tenant can rent multiple apartments within the same building. Tenants can submit maintenance requests using this system. Each maintenance request will have a request ID, category, and description. The maintenance manager manages a maintenance crew in their building. Maintenance crew members can be members of more than one maintenance team. Maintenance crew…
Help me Complete the class definition and implementation for class task.h and task.cpp: Example: class Task { private: string name; DateTime startDate; DateTime endDate; int status; // value =1 means DONE! and value = 0 is pending }
Subject: Software Design and Architecture
Trying Develop program to control operations of small bus transport companies. You should design and develop a class that will be used to create objects that hold information about their routes. The information kept about each route includes: • Route number • Departure time • Bus type • Seat capacity • Seats sold • Route departure town (i.e. the starting point) • Route destination town (i.e. the other end point) • Additional information Behaviour - Functions of this class: • Constructor - default constructor, all data members initialised to default values. • Constructor - takes the route number, seat capacity, departure and destination as input parameters. • A check available seats function that returns the number of unsold (still available) seats on the route; • A sell _seats function that takes as a parameter the number of seats a customer requires. If there are sufficient seats available the seats sold is increased by that amount. If there are insufficient seats a message to that…
Application Development using Object-Oriented Paradigm: A Case Study Problem Statement: The Gymnasium Management System (GMS): Description: GMS is a gymnasium management system that helps any gym receptionist or help desk staff to manage the gym members' accounts by: 1) registering members who can be singles or families 2) applying special discounts to some members 3) Registering members in physical activity classes and services 4) Displaying invoices and related search results. The GMS has two types of members: single and family. The member class is a super-class abstract that has the common attributes and methods in all types of members. The two sub-classes Single Member and Family Member each extends the superclass and define other more specific attributes and methods. The gym system also offers many Services (abstract class) that can be divided into two subclasses Class (e.g., cardio, and cycling) and Amenity (e.g., swimming pool, and steam-room)After adding the members and…

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