What does cardinality indicate in an entity-relationship diagram? 1:The unique identification for which data is stored 2:The maximum number of entity instances for the connection 3:The total number of primary keys for an object. 4:The total number of features of an entity

Q: • Consider the following scenario A company provides catering services for clients who need…

A: Actually, given information: A company provides catering services for clients who need…

Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…

A: Entity relationship diagram:- An entity relationship diagram (ERD), also known as an entity…

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

A: Answer:

Q: Analyze the given entity relationship diagram and answer the following questions.   What is the…

A: Part(1) Degree of relationship is basically the number of entities that in general participates in…

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

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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: What is An entity-relationship model (e-r model)?

A: Given:-   What is An entity-relationship model (e-r model)?

Q: Consider the E-R diagram for a university database as shown in Figure 1. What does deparment…

A: Entity In the Entity-Relationship diagram, department represents entity. An entity is an object in…

Q: Scenario – “Generate ERD of Use Case Diagram” Task to do: i. Identify Entities with atleast 10…

A: I have drawn the E-R diagram for a Student Management System. I have taken 10 attributes in each…

Q: How are entity-relationship diagrams used? What kind of symbol is utilized to represent a…

A: How are entity-relationship diagrams used? Ans:  Entity-Relationship Model (ER Modeling) is a…

Q: company provides catering services for clients who need special-occasion, celebratory dinners. For…

A: Actually, given information: A company provides catering services for clients who need…

Q: Identify the entity ⦁ Identify the entity’s attribute ⦁ Identify the primary and foreign Keys ⦁…

A: Entities: Professor Class Course Room Entity Attributes: 1. Professor: Name ProfessorId(Primary…

Q: Was cardinality ever used as a representation of anything in an entity-relationship diagram? 1:The…

A: INTRODUCTION : Foundation This question is from Database Management System, a Computer Science…

Q: Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all…

A: The given problem is related to database entity relationship diagram where the solution will include…

Q: In a few words, describe the logical link between the entities entity, attribute, and relationship.

A: According to the question An entity is a distinguishable actual-international object that exist. An…

Q: Given the ER diagram to the right, which entity types deserve to stay entity types and which ones…

A: Given the ER diagram to the right, which entity types deserve to stay entity types and which ones…

Q: Give an Example of a weak entity and its identifying relationship?

A: Note: There are multiple questions are given in one question. According to the rule, you will get…

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: E-R model is an acronym for this. Encircle the correct choice. a. Entity reference model b. Event…

A: According to the information given:- We have to choose the correct option to satisfy the statement

Q: In an entity-relationship diagram, what does cardinality represent? 1:The distinct identifier for…

A: The CORRECT OPTION will be OPTION(2) which is "The relationship's maximum number of entity…

Q: Study the following case and Construct the Entity Relationship Diagram (ERD) showing entities,…

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: The below Entity Relationship Diagram (ERD) is in second normal form. Draw a new ERD in third normal…

A: New ERD in third normal form is an given below :

Q: Draw an E-R diagram for a patient appointment system. Consider the entities patient, patient…

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Q: level title enroll Student Date of birth Sname Snumber address Answer the following questions based…

A: There are Multiple questions,As per our guidelines we are supposed to answer only one question.…

Q: What is the term used to describe a non-key attribute in one entity that points to the primary key…

A: This is used to establish relation between two tables

Q: A company provides catering services for clients who need special occasion celebrating dinners. For…

A: Actually, given information: A company provides catering services for clients who need special…

Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…

A: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…

Q: 1. List down the types of attributes in the Entity-Relationship (ER) model.

A: Given: 1. List down the types of attributes in the Entity-Relationship (ER) model.

Q: Explain what the Entity-Relationship model is and how it operates.

A: Introduction: They are also known as the ERDs or ER Models, and they use a preset collection of…

Q: Illustrate an Entity-Relationship Diagram (ERD) model using Crow’s Foot notation  Here we can have…

A:

Q: relationship between entity supertype and entity subtype is known as  _______.     Partial…

A: A relationship between entity supertype and entity subtype is known as a Total participation…

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: A subtype is a sub-grouping of the entities in an entity type that is meaningful to the organization…

A:

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: 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: A relationship between entity supertype and entity subtype is known as  ___

A: Subtype: Sub grouping of the entities in an entity type. Supertype: Supertype is a generic entity…

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: Demonstrate your understanding of the Entity-Relationship Model and its function.

A: Introduction: A problem domain's information structure is represented in terms of entities and…

Q: When must a many-to-many relationship bemodeled as an associative entity

A: Given: When must a many-to-many relationship be modeled as an associative entity.

Q: rules. Your design should be at the logical level – include primary and foreign key fields and…

A: Here using UML I am trying to make ER model . I personally advice there may be more than one correct…

Q: i. Identify Entities with atleast 10 attributes per Entities. ii. Identify all relationsh

A: Given Scenario – “Generate ERD of ERD” Task to do: i. Identify Entities with at least 10 attributes…

Q: a. Identify all entities and attributes for each entity from the Sales Form in Figure 1. Provide…

A: The given problem is related to database where a form of sale is given and the requirement is to…

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.