Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Break down the concept of inherited attributes and how they work in the context of interconnected objects.
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- Provide instances of how objective and abstract variables may be operationalized in a way that is distinct from one another.arrow_forwardWhat is the difference between an intrinsic attribute and a nonintrinsicsynthesized attribute?arrow_forwardClassification methods that are based on vector spaces often perform poorly when working with nominal information. What are your thoughts? How would ML categorise nominal data?arrow_forward
- You should be able to differentiate between physical and schematic representations by providing examples of each.arrow_forwardThe distinction between a weak and a strong entity collection has to be clarified.arrow_forwardCreate a base class called Entity. The Entity class must hold the common attributes and behaviors from UML. Entity Class UML Entity -id: long -name: String -------------------------------- -Enity() +Entity(id: long, name: String) +getId(): long +getName(); String +toString(): String Complete the code for the Player and Team classes. Each class must derive from the Entity class. Refactor the Game class to inherit from this new Entity class. Every team and player must have a unique name by searching for the supplied name prior to adding the new instance. Use the iterator pattern in the addTeam() and addPlayer() methods. Code that I have, not sure if I have it correct. Thank you Entity Class package com.gamingroom; public class Entity {//Private attributesprivate long id;private String name;//Default constructorpublic Entity() { }//Constructor with an identifier and namepublic Entity(long id, String name) {this();this.id = id;this.name = name;} //@return the idpublic long getId() {return…arrow_forward
- How does modularity play a crucial role in the Structured modeling approach?arrow_forwardDraw these on the given diagram: Associations (aggregations/compositions if needed) with names and multiplicities, generalization, attributes (withvisibility and attribute types).arrow_forwardDraw UML class diagram according to descriptions given below. Please include appropriate labeling and multiplicity in your diagrams. You do not need to include the attributes and operations for the classes. A Rectangle object is composed of exactly four Line objects A Customer object is able to initiate zero or more Transaction A Student Object must enrolls in at least one, at most five Subject A Mouse object is kind of a Rodent A Rodent object is a kind of Mammal Object.arrow_forward
- What is the mechanism by which an Abstract Data Type (ADT) executes a prescribed sequence of operations? Is it possible for Abstract Data Types (ADTs) to result in unintended consequences? What supplementary mechanisms can be postulated for the role of genetic factors in facilitating individual success?arrow_forwardRelationships in a use case diagram are a powerful mechanism to organize and reuse requirements. There are three main types of relationships in use case diagrams:1.Actor to actor—This is the generalization relationship and represented by the inheritance arrow in Figure 6.1. This relationship was also discussed in the previous chapter (notably Figure 5.3).2.Actor to use case—The relationship between an actor and a use case is called an association, also occasionally called "communication" because it represents a communication between the actor and the system. This association is represented by a straight line in Figure 6.1. The association is an interface through which an actor interacts with the system. Occasionally, an association line may have an arrowhead (not shown in Figure 6.1), representing the actor initiating the use case. This direction on the association relationship is only shown if absolutely necessary.3.Use case to use case—There are three specific relationships permitted…arrow_forwardCan you help with the UML diagram please,thank you so mucharrow_forward
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