Define the terms subtype?

Q: What is UML Diagram?

A: UML Diagram: It's a general-purpose modeling language that's used to demonstrate how the system…

Q: What is a Attribute interpolation?

A: Given: What is a Attribute interpolation?

Q: What is meant by cardinality and modality ?

A: Cardinality In data modeling cardinality specifies how number of occurrences of one object related…

Q: Relationship between supertypes and subtypes. Where does the rule of disjunction apply?

A: A supertype is a generic entity type it  has a relationship with one or more than one subtypes. A…

Q: Define the term Identifier attribute?

A: Given: Define the term Identifier attribute?

Q: What is a strong entity type?

A: GIVEN: What is a strong entity type?

Q: Define the term Subtypes inside supertypes notation?

A: Given: Define the term Subtypes inside supertypes notation?

Q: Give some special guidelines for naming entity types

A: Guidelines for Entity Types: The entity name should be singular. It should be very specific and…

Q: A/An ___________ is an association among entities. Write the letter of the correct answer in the…

A: Sort Answer: A Relationship is correct answer. See below steps for detail explanations.

Q: Contrast the terms supertype; subtype?

A: The comparsion is given below:

Q: What are data structures and why are they important? What kinds and sub-types do they have? What…

A: The data structures are referred to be collections of data of various data types. The following two…

Q: What are the uses of DEFINE and DESCRIBE? Please expand and elaborate. DEFINE uses:   DESCRIBE…

A: Answer: DEFINE uses: Define means to precisely describe or state the nature, scope, or meaning of…

Q: What is Supertype/subtype hierarchy?

A:

Q: Define key Identifier?

A: Given: Define key Identifier An area that contains one of the following is a key identifier for a…

Q: What is a framework, and how does it work?

A: INTRODUCTION: The question is about the framework and how the framework works and here is the…

Q: Example of super type/subtype relationship. where the disjoint rule applies?

A: Disjoint rule The disjoint rule indicates that the super type instance may not be a member of two or…

Q: What is a Weak entity type?

A: Given:- What is a Weak entity type?

Q: What is a simple (or atomic) attribute?

A: The simple values are the atomic or unique values which can not be modified or altered further.

Q: When is it appropriate to use a supertype/subtype hierarchy?

A: Entity It is distinguishable real-world object. In a database, only that ‘thing’ or ‘item’ is taken…

Q: define attribute * lour a nswer

A: It is defined as systematic collection of data. They support electronic storage and manipulation of…

Q: What is a disjoint subtype? Give an example

A: In this answer I will be discussing about Disjoint subtype.

Q: What is the function of a subtype discriminator?

A: The Answer is in step-2.

Q: Question 16 The property by which subtype entities possess the values of all attributes of a…

A: INTRODUCTION: Class management refers to the complete process of managing the classes that are…

Q: Define Attribute interpolation.

A: When making the application using the Angular, users come in contact with some ways for showing data…

Q: What exactly is a framework, and how does it carry out its functions?

A: INTRODUCTION: A framework, in general, is a physical or conceptual structure that is meant to act as…

Q: What exactly is an entity?

A: In a database, an entity is a collection of characteristics. An entity might be a tangible thing…

Q: What does the term "Entity type" mean?

A: Entity type: A This concept describes a person, an organization, an object type, or a concept about…

Q: Write the objectives of selecting a datatype for a field.

A: Lets see first what is datatype ?? Datatype is define as a classification which specifies that…

Q: Subtype discriminators se

A: Answer: A subtype discriminator is an attribute which is according to the name suggests it is whom…

Q: ______ represent real-world associations between entities.

A: An entity refers to the real-world object that can be either tangible such as a person or intangible…

Q: differences between is-a relationship and has-a relationship with examples.

A: There are two ways to  reuse codes in object oriented programming either by the implementation of…

Q: What are the two options for a designer when confronted with a multivalued attribute?

A: Multivalued attributes An ER model or Entity Relationship model is a data representation model that…

Q: : Government wants to create a database for schemes launched in respective country.   Application…

A: Here I am providing the answer for the above question:

Q: Define the term "subtypes" in the context of the supertypes notation.

A: Given that: The topic is about term "subtypes" in the context of the super types notation.

Q: Define the terms supertype?

A: Given: Define the terms supertype?

Q: How to Draw a supertype-subtyperelationship for a person.

A: Supertype and Subtype: When an entity has several varieties and within of those varieties some…

Q: What is attribute oriented programming?

A: An attribute is a changeable property or characteristic of some component of a program that can be…

Q: Differentiate among following: [at least 4 differences] 1. include and extended relation in use case…

A: Use case diagram In the Unified Modeling Language, it shows the information of your machine's users…

Q: What is MOdeling entitieS And AttriButeS?

A: Modeling entity: An entity represents a specific object.It describes the structure of data.

Q: Define the term UML? How to represent a class diagram in UML

A: UML:   Unified Modeling language, is a standardized modeling language consisting of an integrated…

Q: What is Attribute inheritance and its importance

A: Given: What is Attribute inheritance and its importance

Q: What is an example of a supertype/subtype connection in which the disjoint rule is applicable?

A: Solution:- Disjoint rule: The disjoint rule indicates that the supertype instance may not be a…

Q: Where do entity supertype stored at.

A: supertype entity in the data model with definition , examples, and explanation.

Q: What is Classificat

A: Numbering system:  This is the approach which is used to represent the numbers in computer…

Q: What does "Identifier attribute" mean?

A: Introduction: Identifiers are the characteristics that each uniquely name or identify an instance of…

Q: What is the definition of subtype hierarchies?

A: The definition of subtype hierarchies will be explained :

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.