A data model is a collection of data description constructs. The main purpose of a data modeling is to assist in the understanding of the meaning (semantics) of the data and facilitate communication about the information requirements. Discuss FIVE (5) evaluation criteria for a good data model. [Hint: As a database designer, you have to interview customers, you are required to include questions you may ask to customers in your answers]

Q: Is it possible that during the physical database design and creation step of database development…

A: Given: Is it possible that during the physical database design and creation step of database…

Q: Contrast the top-down nature of database development during conceptual data modeling with the…

A: The difference between the nature of data development Databases are structured data set and all…

Q: Why do you think entity relationship (ER) diagrams in database design are necessary?

A: Entity Relationship Diagram is a conceptual, graphical, and logical structure of a database. Entity…

Q: xample code and diagrams, explain how the following database concepts are implemented: i) Trigger;

A: Triggers can be written for the following purposes − Generating some derived column values…

Q: What are the three major steps of the database design (data modeling) process? Define each by one…

A: Three major steps of the database design (data modeling) process: conceptual logical physical

Q: uct a context and data flow diagram level-0 supporting the logical design/implementation of the…

A: Lets see the solution.

Q: Explain the process of data modeling in terms of high level and implementation level

A: Data modeling is defined as the procedure of producing a graphical and diagrammatic depiction of the…

Q: From a conceptual point of view, an index is composed of an index key and a set of pointers. In…

A: Yes, From a conceptual point of view, an index is composed of an index key and a set of pointers. An…

Q: Task 2 Using the scenario, produce Design Documentation for Plug-Ins Electronics. Your database…

A: Er diagram or entity relationship diagram gives a brief lookout for all the entities present in a…

Q: data model.  d. When implementing a 1:1 relationship,

A: As per guidelines, we can only solve one question at a time. Hence resubmit the question for further…

Q: describe the basic features of the relational data model and discuss their importance to the end…

A:

Q: Unlike a database, which stores data, an information system makes use of it. Is there any impact on…

A: The Answer:

Q: Explain the idea of physical data independence, as well as its significance in relation to database…

A: If you want to be physically independent of your application programmers, you can do it without…

Q: In the three-schema architecture: a. The view of a manager or other type of user is called the _____…

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

Q: bility to modify schema of database in one level without affecting the schema definition in higher…

A: Ability to modify schema of database in one level without affecting the schema definition in higher…

Q: Question 3 a) Normalize table 1 to a set of Third Normal Form (3NF) relations. Your answer should…

A: Primary key for the given relation is, (PatientID , DiseaseID) The Fd's possible are PatientID…

Q: What are the importance of relational data model to end-user and designer.

A: To be determine: What are the importance of relational data model to end-user and designer.

Q: Consider a MOVIE database in which data is recorded about the movie industry. The data requirements…

A: Answer : I attached an  ER diagram image please have a look once.

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column…

Q: What is the procedure followed in order to convert a data model into a database design?

A: Introduction: Using Access, you may construct database applications that can be accessed through the…

Q: Exercise 1 – Medical Clinic System A local medical practice have asked you to help design a simple…

A: (A) Entities (i) Patient - it will contain all patient related details like their name, age, sex,…

Q: how could you construct your database and tables? Design your database and draw a database schema…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

Q: Design a relational database that consists of the following stages: 1- Database requirements and…

A: Database scenario:- The ER diagram shows the hospital system model. The ER diagram shows every…

Q: 3. Which of the following is a Data Model? a. Entity-Relationship model b. Relational data model c.…

A: ER or Entity-Relationship model:  it describes interrelated things of interest in a particular…

Q: the relationship between a table of Movies and a table of ActorsActresses and how might it be…

A: the solution is an given below ;

Q: Interview system designers and database designers at several organizations. Ask them to describe the…

A: Data model: Requirements Gathering The first step is necessities gathering. throughout this step,…

Q: There are two views of the data i.e., the logical view and the physical view. In relation to…

A: Below i have answered:

Q: In database management system, the current set of instance or database snapshot is also called a.…

A: Required:   In database management system, the current set of instance or database snapshot is…

Q: When mapping entities to one another for a relational database, there are several different…

A: Defined the mapping relationship in a relational database

Q: What makes entity relationship (ER) diagrams so important for database design, in your opinion

A: Let's first understand what is the er diagram to have the idea about why it is important  What is ER…

Q: Consider a database containing personnel information, including names, addresses, and salaries of…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

Q: Consider the unnormalized data presented in the STUDENT table below: a) Identify the data…

A: According guideless we are supposed to answer only first 3-sub part at a time .please repost the…

Q: What is the technique for converting a data model into a database design?

A: Introduction: You may use Access to create database apps that can be accessed through the Internet.…

Q: Consider a PUBLICATION COMPANY database in which data requirements are summarized as follows: Every…

A: Solution:- The entity list along with underlined primary keys are :- 1)…

Q: The process of reading a database schema and producing a data model from that schema is known as:

A: Option c is correct✅

Q: Q1: Data Modelling is the primary step in the process of database design. Compare and contrast…

A: Comparison of conceptual data model and physical data model: The conceptual data model is basically…

Q: 1b)By using a scenario, explain program-data dependence issue found in previous database…

A: Solution :    Explanation : Before discussing the issues found in previous database technologies…

Q: Data Modelling is the primary step in the process of database design. Compare and contrast…

A:

Q: The attributes of the entities are represented as in the Relational Data Model.

A: Attributes in database An attribute describes the entity properties in the relational model. Each…

Q: Which of these data models is an extension of relational data model? a. Object-oriented data model…

A: Required:   Which of these data models is an extension of relational data model? a.…

Q: Data Modeling is the first phase in the process of database design and is the most important.…

A: Modeling of Data The Data Model is a visual depiction of objects and their interactions. Data…

Q: By using a scenario, explain program-data dependence issue found in previous database technologies…

A: Рrоgrаm-Dаtа  DeрendenсeThe  сlоse  relаtiоnshiр  between  dаtа  stоred  in  files  аnd  the…

Q: Data Modelling is the primary step in the process of database design. Compare and contrast…

A: Data modeling: It is the process of creating data model for an information system by applying formal…

Q: The collection of all the concepts that must be used to describe database structure is called

A: The collection of all the concepts that must be used to describe database structure is called

Q: Read the scenario carefully You have to propose and optimal database design in RDBMS for a super…

A: Solution : 1.Entities: Products table to store the information related to products. Customer table…