1. What are multivalued attributes. 2. What's the difference between partial completeness and total completeness 3. What are the two conditions that must be met before an entity is classified as weak entity.

Q: how to graphically identify an entity, a the cardinality (o,N), a weak relation ship, and a strong…

A: Graphically identifying an entity in a Crow’s Foot notation: In ER model, the term entity refers to…

Q: n the attached diagram, which of the following statements are true?       primary key for section…

A: Weak entities are represented with double rectangular box in the ER Diagram and the identifying…

Q: In a few words, describe the logical relationship between the entities, attributes, and…

A: Introduction: An entity is a piece of data or a physical object. It is possible to save information…

Q: Q.No.1.a. Draw ER- notation for the given elements of ER-Model. Entities Strong Entity Weak Entity…

A: Note: The solutions of the first three subparts of question 1 are shown below. Please repost the…

Q: How do you map a "Many to Many" relationship when mapping ER Diagram to Schema Select one: O a. Take…

A: How do you map many to many relationship when mapping ER diagram. Many to many relation happens when…

Q: Fill in the blank:  A ____________________ is a structured collection of related data stored on a…

A: Database: Database, any collection of data or information, that is specially organized for rapid…

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: What is the definition of an Entity set?

A: Answer An entity set is a logical container for instances of an entity type and instances of any…

Q: Q1. ER Model . Create an ER Model for the following: A customer (eg. Tom) may (or may not) give…

A:

Q: An instructor has several phone numbers.  When reducing the ER diagram down to a schema this must be…

A: Actually, ER is describes the structure of database with help of diagram.

Q: Consider the below ERD in Figure 03 of Student Enrolment system and answer the below questions.…

A: List the strong (non-weak) entity types in the ER diagram. Student Enrollment Lecturer Subjects…

Q: 17.How are nary relationships associated with entity types? 1:They are different entity types.…

A: Step 1; The answer is given in the below step Introduction: Kinship is a substantial part of any…

Q: What does it mean to be a weak entity? Set a good example.

A: Introduction: Although an entity type should contain a key attribute that uniquely identifies each…

Q: Question 1  a)  Give an example of three entities that might exist in a database for a medical…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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: 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: A entity instance of one type related to exactly one-entity instance of another type is------? Many…

A: A entity instance of one type related to exactly one-entity instance of another type is------?…

Q: Computer Science • Prepare an entity relationship diagram level 2 - Weak Entity, Aggregation, IS-A…

A: Note: As guidelines by bartleby, we can only write text or attach images but we cannot send word…

Q: 3.4. Which statements are correct? a. A weak entity type can only have one attribute type. b. A weak…

A: The solution to the given problem is below.

Q: Given the ER diagram above, answer the following questions: Name an entity type that has more than…

A: a)Department is an example of entity having more than one relation. b)Departmentname is a key…

Q: What is the attribute that could be obtained using other attributes in the Entity-Relationship…

A: Introduction: What is the attribute that could be obtained using other attributes in the…

Q: What does cardinality represent in an entity-relationship diagram? 1:The uniquely identifiable…

A: This question comes from Database Management System which is a paper of Computer Science. Let's…

Q: . Refer to this entity-relationship diagram. How does this diagram depict a unattractive…

A: The solution is as follows

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: In an entity-relationship model, which of the following is a kind of attribute that should have some…

A: Required attribute is an attribute that must have a value in it. hence, it can not be left empty.

Q: Question 1   A) Basic building blocks of data models are entities, attributes, relationships, and…

A: DBMS is a Database management system that consists of various things for creating the data model.…

Q: What two conditions must be met before an entity can be classified as a weak entity?Give an example…

A: Lets see the solution.

Q: If any of the following choices are applicable, please tick them. This model includes entities like…

A: This model includes entities like as customers and accounts; employees; checks; and transactions.…

Q: What is the difference between a weak entity and a strong entity that is necessary to have a…

A: This question comes from Database Management System which is a paper of Computer Engineering. Let's…

Q: Multiplicity is the same as what concept for an ERD? a. Relationship b. Attribute c. Entity d.…

A: Please see the next step for solution

Q: 4.1 Define the term entity and give an example other than those used in this book. 4.3 Explain the…

A:

Q: ______ represent real-world associations between entities.       Entities       Attribute…

A: A relationship between two entities signifies that the two entities are associated with each other…

Q: Explain the relationship in the below Entity Relationship Diagram (ERD) in your own words.

A: Below is the explanation of ER diagram:

Q: You must analyze the entities identified including the bridges: • Entity name • Entity description…

A: entity name:class level description:the class level entity acts as a base class for the classes…

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

A:

Q: What concept is defined by the following definition?  ”A set of entities of the same type that…

A: Please find the answer below :

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: Create an entity-relationship diagram for the three entities showing the correct cardinalities

A: An entity-relationship diagram for the three entities showing the correct cardinalities is as…

Q: List all of the attributes of a movie.

A: As per bartleby guideline we did only 1st question

Q: Use ER Assistant to draw your diagram.  Transform the following M-N relationship into an associative…

A: ERD: ERD stands for Entity Relationship Diagram. This is a diagram which is used to show 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.