How are entity-relationship diagrams used? What kind of symbol is utilized to represent a relationship? What does the term "associative entity" mean? Give an example.

Q: Given the ER-diagrams shown below, describe (in an organized way) as much as you can about the real…

A: As asked in this question we need to describe the E-R Diagram in an organised way and to do that we…

Q: Unified Modelling Language (UML) is often used as a notation when drawing Entity-Relationship…

A: Unary Relationship When there is a relationship between two entities of the same type, it is known…

Q: Explain what the Entity-Relationship model is and what its purpose is

A: Entity Relationship model is a simple diagram which depicts the structure of tables and the…

Q: What does cardinality indicate in an entity-relationship diagram? 1:The unique identification for…

A: Introduction: This question is about the unique identifier for which data is stored. The…

Q: Draw an entity-relationship (E-R) diagram torepresent common business situations.

A:

Q: Show that you understand the Entity-Relationship Model and how it works.

A: Introduction: ER model stands for an Entity-Relationship model. It is a high-level data model.  This…

Q: Prepare an entity relationship diagram for the revenuecycle that includes entities, cardinalities,…

A: An ER diagram using crow's foot notation has been designed to comply with the given business rules .…

Q: Office stestbiame deptCode lastName frstName tacid rank Department employs Credits Faculty sRated…

A: a)entity type that has more than 2 relationships are- class and department class- relationship with…

Q: Describe how the relationship (M:N) of an E-R diagram is transformed into relations

A: Transforming ER diagrams into relations requires the construction of actual relations observing the…

Q: What is an Entity Relationship Diagram? Can you show me an example.

A: An ER diagram shows the relationship among entity sets. An entity set is a group of similar entities…

Q: Modify and (if required) correct the following ER diagram in to a more complex er diagram with more…

A: The ER diagram is been modified with some extra attributes and relationship

Q: Give an example of how attributes are used in a relationship model, and what the generic term for an…

A: Entities in the ER model contain characteristics that may be single-valued, multi-valued, composite,…

Q: Describe how the relationship (1:M) of an E-R diagram is transformed into relations

A: Relations:: The entity relationship (ER) information model has existed for over thirty five years.…

Q: Describe the entity-relationship model. How are entities, relationships, and attributes represented…

A: Actually, An Entity relationship diagram is a graphical representation a database that describes…

Q: An entity is represented in an E-R model as a(n):a. arrowb. crow’s footc. dashed lined. none of the…

A: Entity in an E-R model An entity is an object that exists. An entity can be a single thing, person,…

Q: Write down the many kinds of attributes in the Entity-Relationship (ER) model.

A: Given: 1. Make a list of the different kinds of characteristics that are used in the…

Q: Interpret the different form of Entity used in the given scenario of ER diagram. Illustrate the…

A: Strong entity Account Region Item creep Weak Entity Character Item Instantiation creep…

Q: Draw a complete ER Diagram. Show all entities, attributes, primary keys, foreign keys,…

A:

Q: draw Er model : for the entity( booking,movie show, ticket, user, employee,payment) with the…

A: ER DIAGRAM for given entity is given below we use following entity  booking  Movie show  Ticket…

Q: In addition to explaining what action is being taken, what else should a relationship definition…

A: Relationship: Relationship is used to connect entity types in a meaningful way. It means that those…

Q: The cardinality ratio depends on the real-world meaning of the entity types involved and is defined…

A: 1. Each student can have only one social security number and a social security number can belong to…

Q: Explain Entity Relationship Diagram with a suitable example.

A: Entity Relationship Diagram Entity–relationship diagram describes a structure of the database with…

Q: Give a detailed description of an entity. Define and illustrate with sample an Entity Relationship…

A: Entity: It is described as a real-world object. It has a physical existence and a conceptual…

Q: Create an Entity Relationship Diagram (ERD) using UML notation after studying the business rules…

A:

Q: Describe the entity-relationship model and how it works.

A: Entity relationship: Entity relationship models are based on the relationships between real-world…

Q: What are the applications of entity-relationship diagrams? What kind of symbol is used to depict a…

A: Answer : application of entity relationship diagram : It is to simply understanding the relationship…

Q: Create an entity relationship diagram and the relational diagram

A: ANSWER: Entity Relationship Diagram: An entity relationship diagram, otherwise called an entity…

Q: onship (ER) Modeling that people may forget about ( i am not talking about the main function or…

A: Q.   what can be very interesting about the Entity-Relationship (ER) Modeling that people may…

Q: Describe how the regular entity type of an E-R diagram are transformed into relations

A: Given: Describe how the regular entity type of an E-R diagram are transformed into relations

Q: The cardinality ratio depends on the real-world meaning of the entity types involved and is defined…

A: 1. Student can only one social Security number while a social Security number can belong to only one…

Q: Modify the Er diagram given below and add these Weak entity Identifying relationship Weak…

A: ER Diagram using these  Weak entity Identifying relationship Weak relationship Key attribute…

Q: In an entity-relationship diagram, what does cardinality mean? 1:The data is saved concerning a…

A: Foundation This question was taken from the Database Management System paper that was given in the…

Q: Use an appropriate example to explain Entity Relationship Diagram.

A: Entity Relationship Diagram Entity–relationship diagram describes a structure of the database with…

Q: What are entity-relationship diagrams and how are they used? What symbol is used for a relationship?…

A: Explanation: Any real-life object interacting in a business scenario is represented in the form of…

Q: Why is it recommended that every ternary relationship be converted into an associative entity?

A: GIVEN: Why is it recommended that every ternary relationship be converted into an associative…

Q: Creation of Entity Relationship Diagram Draw the entity relationship diagram (ERD) for this…

A: Entity Relationship Diagram :- An Entity Relationship Diagram (ERD) is a visual representation of…

Q: What is the Entity-Relationship Model and what is its purpose?

A: What is the Entity-Relationship Model  what is its purpose? ER model stands for Entity Relationship…

Q: Entity Relationship Diagram and Class Diagram are two diagramming techniques sharing common…

A:

Q: Produce an entity relationship diagram of the Grand villa Hotels system described above.

A: According to the information given:- We have to produce ER diagram of the Grand villa Hotels system.

Q: If you are reading a flat file, with minimal information regarding business rules and constraints.…

A: Solution:Even though the file contains minimal information about business rules and constraints,…

Q: Describe what an entity-relationship model is and how it functions in your own words.

A: Given: Real-world entities and their connections inform entity relationship models.  ERM. Entity…

Q: Relationship Analysis • Relationship name: PARENT ENTITY relationship name CHILD_ENTITY (the name is…

A: Answer:

Q: What is an associative entity (also called an association entity)? What is an association…

A: Association RelationshipInformation Engineering (IE) is a way of representing relationships among…

Q: What is an entity-relationship diagram, and how does it work?

A: An entity-relationship diagram (ERD) is a data modeling technique which is used to graphically…

Q: Describe how the relationship (supertype/subtype) of an E-R diagram is transformed into relations

A: A supertype type is a typical business type that is affiliated with one or more subtypes. The…

Q: Relationship Analysis • Relationship name: PARENT_ENTITY relationship name CHILD ENTITY (the name is…

A: Two entities are mentioned for the relationship analysis: PARENT_ENTITY and CHILD_ENTITY The…

Q: Specifically, on which side of a many-to-one connection does the primary key of one entity function…

A: Given: Specifically, on which side of a many-to-one connection does the primary key of one entity…

Q: draw an E-R diagram that indicates the entity sets and their attributes. Identify and label…

A: An ER diagram is an entity relationship diagram, also known as an ERD, which displays the…

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.