UML Class Diagram for a Cable Company Software System, Lab Reports of Computer Science

Download UML Class Diagram for a Cable Company Software System and more Lab Reports Computer Science in PDF only on Docsity! UML Exercises Problem 1 Given the following problem description, draw a UML class diagram representing the software system design you would design. Include as many details as possible. You need to design a software system that handles installation requests for a cable company. Installation requests are serviced on a first-come first-serve basis. An installation request is identified by an id number and the technician it is assigned to. An installation request includes information about a customer, and type of service requested (digital o analog). The cable company has two types of technicians: those that install analog systems and those installing digital ones. Installing an analog system requires connecting a cable to the back of the TV and setting up the TV; installing a digital system requires making a connection to a company digital box, and a separate connection to the TV. In addition to installing systems, any technician can generate a bill for a customer, and answer any general questions about services the company offers. Problem 2 Define the UML Class Diagram associated with the classes/interfaces below. public interface ElectricalDev { public double watts(); } public class Remote { private TV tv; public Remote(TV tv) { this.tv = tv; } public void changeChannel(int channel) { tv.changeChannel(channel);} } public abstract class TV implements ElectricalDev { private String brand; private int channelNum; public Remote remote = new Remote(this); public TV(String brand) {this.brand = brand; channelNum = 1;} public String toString() { return "Brand: " + brand + " Channel: " + channelNum; } public void changeChannel(int channelNum) { this.channelNum = channelNum; processAndDisplaySignal(); } protected abstract void processAndDisplaySignal(); } public class HighDefTV extends TV { private String digitalConverter; public HighDefTV(String brand, String digitalConverter) { super(brand); this.digitalConverter = digitalConverter; } public String toString() { return super.toString() + ", Converter: " + digitalConverter; } public void processAndDisplaySignal() {System.out.println("Process/Display HD signal."); } public double watts() { return 100; } }