Define the term present value, and provide an example

Q: Give an example of the use of effective (or effectivity) dates as attributes of an entity.

A: Effective dates as Attributes of an Entity Effective dates: Effective dates are used to design the…

Q: Business rules are developed when a thorough investigation of a company's activities is conducted.…

A: A business rule is a set of rules that govern an organization's activities, definitions, and limits.…

Q: Provide an example of a data definition command.

A: SQL commands are divided into four : DDL (Data Definition Language) DML (Data Manipulation…

Q: We use the terms "complete and consistent" interchangeably, but what exactly do we mean?

A: Interchangeably: In computer science, interchangeability refers to the capacity of an item to be…

Q: Tell us about the basic principles of creating effective data input fields.

A: I have answered this question in step 2.

Q: A notation for defining the form and structure of data is known as Data definition language explain?

A:

Q: Explain how weak entity representation differs from strong entity representation.

A: Entity: The entity is a representation of an object, table, or thing in a database management…

Q: 3. Explain requirement validation.

A: Requirements validation is the process of ensuring that the development requirements define the…

Q: Explain the distinction between entity type and entity instance.

A: GIVEN: Explain the distinction between entity type and entity instance.

Q: TRUE or FALSE - Generalization (is-a) is the relationship established between entities to show that…

A: Answer: the given statement is false

Q: TRUE or FALSE - A super-entity can only have two sub-entities and no more.

A: A SUPER-ENTITY CAN HAVE MORE THAN TWO SUB-ENTITES

Q: Describe a scenario in which a static data structure might be beneficial. A dynamic data structure…

A: Introduction Static data: Static data structures (SDS) are different from dynamic data structures…

Q: efi

A: In a database management system, a surrogate key is a key, or a unique identifier, that uniquely…

Q: Question : Map the following ERD to relational schema (show primary and Foreign keys) CPR Supervise…

A:

Q: Generalization is the process of defining a general entity type from a collection of specialized…

A: Generalization is a process of a new entity being formed using the collection of two or more…

Q: 24- Requirement can be redefined using prototype model True O False

A: Please find the answer below :

Q: is an example of functional requirements.

A: According to the question we need to solve 2 questions.

Q: In an ERD, how is a connection between two or more entities indicated? Provide an example of the…

A: The answer :

Q: All the information about usage standards, decision of designs, user information and description of…

A: Given data is shown below: All the information about usage standards, decision of designs, user…

Q: It is the relation among individual entities and values. O principles patterns state relation

A: In  Step 2, I have provided   correct  option-----

Q: The following statements are correct for. 1. Certain attributes may apply to some but not all…

A: Generalization: Based on the common features that exists among a set of entities,  they can be…

Q: Define key term overlap rule?

A: DBMS is a product for putting away and recovering clients' information while considering appropriate…

Q: Create an entity na

A: One to one mapping is a association of instance of one entity to instance of another entity. Here…

Q: An entity that depends on an other entity to exist is called ________ entity

A: There is something known as an entity, and it is that thing. If you're working with databases, an…

Q: Design an Entity Relationship Diagram for the following example

A: For given given scenario we can have following  entities and their corresponding attributes :…

Q: Question: Define the term "present value", and provide an example.

A: Here is the detailed explanation of the solution

Q: Elaborate the process of design with a real life example of domain CHI.

A: A network domain is a group of multiple private computers or hosts with the same infrastructure. A…

Q: Define key term total specialization rule?

A: Define key term total specialization rule?

Q: A transaction is delimited by statements (or function calls) of the form __________ a. Begin…

A: The transaction consists of all operations executed between the begin transaction and end…

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: Explain build list forward function

A: To be determine: Explain build list forward function.

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: The term-- describes a whole-part relationship in which the components can exist separately. Select…

A: Note: This is a multiple-question-based problem. As per company guidelines, only the first question…

Q: The "Title" attribute in "BOOK" Entity Type is considered as: Main Sub

A: Here the attribute is further divided as Main and Sub.

Q: Data and process modeling

A: Data Modelling : Data modelling is a way to take raw data and convert it into meaningful…

Q: schematic diagram to the Acid value of oil.

A: Schematic diagram: A schematic diagram is a picture that represents the components of a process,…

Q: Describe the processes involved in validating a logical model against user requirements.

A: The user demand is checked against the logical model: One of the steps in logical design is to…

Q: Provide definitions for functional and non - functional requirements along with 2 examples. (…

A: Requirement analysis is a very important phase of any project. User requirements are collected,…

Q: The form of data independence in which the schema may be modified conceptually without affecting the…

A: This question explains about When the schema may be changed theoretically without altering the…

Q: What is the definition of an Entity type?

A: Ans.) Entity type:- A person, organization, object type, or concept about which information is…

Q: Create an entity named country and capital and create a one-to-one mapping using JPA. COUNTRY…

A: Create an entity country and capital and create a one-to-one mapping using JPA. Write a main program…

Q: STION 9 is used to represent the M: N relationships between two or more entities. A Mandatory B.…

A: M:N relationship: Relationships helps to connect the  related information between the  tables. They…

Q: Explain the ambiguity in the definition of the term weak entity. Explain how this book interprets…

A: weak entityA weak entity is defined as an entity that cannot exist in a database unless another type…

Q: Define transaction and transaction flow  Mention the applications of transaction flows.

A: The Answer is in below steps

Q: 12. In a book store, a customer who wants to buy a book asks the assistant if a copy of the book is…

A: Level 1 DFD –At this level, the system has to show or exposed with more details of processing.The…

Q: :One of the followings is NOT a step to transforming an ERD into normalized relations normalize the…

A: Answer is denormalize the relations .b

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

A: Answer: An entity may be an object with a physical existence (for example, a particular person,…

Q: A program is an active entity. a. True b. False c. May be d. Can't say

A: Given statement, A program is an active entity.

Q: What does it mean to be a weak entity? Give an illustration.

A: An entity which can only exist when it is owned by another entity is called a weak entity. In terms…

Data flow diagram

A visual description of data flow in the system is called a data flow diagram(DFD). DFD is capable of explaining incoming data flow, outgoing data flow, and data storage. The data flow diagram describes how data flows through the system. DFD is developed using standardized notations and symbols. The data flow diagram represents the boundaries and scope of the whole system. Data flow graphs and bubble charts are the other names of DFD.