EBK USING MIS
10th Edition
ISBN: 9780134658919
Author: KROENKE
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 5.1UYK
Draw an entity-relationship diagram that shows the relationships among a
Expert Solution & Answer
Program Plan Intro
E-R model:
- It is a tool for creating data model.
- It is used for developers to describe the content of data model by using two functions called entities and relationships.
Entity:
- It helps the user for tracking something in database.
- Example entities in student database system are Student, Grade, Course, etc.
Relationships:
- Entities have relationships among each other.
- For example, in student database, a Student has a relationship to Major and Student has a relationship to Advisor.
Attribute:
- It used to describe the entity characteristics.
- Example attributes of student entity is Student_id, Student_name, Student_address, etc.
Identifier:
- It is an attribute or group of attribute, but its value is related with one and only one entity instance.
Example of E-R diagram:
Explanation of Solution
Entity Relationship diagram that displays relationship among the database, database application and users:
The below is the E-R diagram that shows the relationship that is laid among the database, database application and users:
User:
The person or end user that can process the application that is stored in the database.
Database application:
A database application is a collection of four elements namely forms, reports, queries and application which acts as an intermediate between the user and data of the database
Database:
Database is a collection of information that is used to store and retrieve the data. Data is organized in tables.
Explanation of the E-R diagram:
- Many user can use the database application.
- Example of the user entity could be “students”, “faculty”.
- Many database applications can be present in a single database.
- Example of the database application could be “Bookstore”,”Library”.
- Only one database can contain many database application.
- Example of the database could be “studentDB”,”BookStoreDB”.
- The relationship between the user and the database application is “M:N (Many to many )relationship.
- The relationship between the database application and theDatbase is “N:1”(Many to One) relationship.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
I would like to get help to resolve the following case
Last Chance Securities
The IT director opened the department staff meeting today by saying, "I've got some good news and
some bad news. The good news is that management approved the payroll system project this morning.
The new system will reduce clerical time and errors, improve morale in the payroll department, and avoid
possible fines and penalties for noncompliance. The bad news is that the system must be installed by
January 1st in order to meet new federal reporting rules, all expenses from now on must be approved in
advance, the system should have a modular design if possible, and the vice president of finance would
like to announce the new system in a year-end report if it is ready by mid-December."
Tasks
1. Why is it important to define the project scope? How would you define the scope of the payroll
project in this case?
2. Review each constraint and identify its characteristics: present versus future, internal versus exter-
nal, and mandatory versus desirable.
3. What…
2. Signed Integers
Unsigned binary numbers work for natural numbers, but many calculations use negative
numbers as well. To deal with this, a number of different methods have been used to represent
signed numbers, but we will focus on two's complement, as it is the standard solution for
representing signed integers.
2.1 Two's complement
• Most significant bit has a negative value, all others are positive. So, the value of an n-digit
-2
two's complement number can be written as: Σ2 2¹ di 2n-1 dn
• Otherwise exactly the same as unsigned integers.
i=0
-
• A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1,
or 1 becomes 0) and then add 1 to the least significant bit.
• Addition is exactly the same as with an unsigned number.
2.2 Exercises
For questions 1-3, answer each one for the case of a two's complement number and an
unsigned number, indicating if it cannot be answered with a specific representation.
1. (15 pts) What is the largest integer…
Chapter 5 Solutions
EBK USING MIS
Ch. 5.2 - Prob. 1EGDQCh. 5.2 - Prob. 2EGDQCh. 5.2 - Prob. 3EGDQCh. 5.2 - Prob. 4EGDQCh. 5.2 - Prob. 5EGDQCh. 5.2 - Prob. 6EGDQCh. 5.2 - Prob. 7EGDQCh. 5.2 - Consider the adage Never ask a question for which...Ch. 5.3 - Prob. 1SAQCh. 5.3 - Prob. 2SAQ
Ch. 5.3 - Prob. 3SAQCh. 5.3 - Prob. 4SAQCh. 5.8 - Prob. 1SGDQCh. 5.8 - Prob. 3SGDQCh. 5.8 - Prob. 4SGDQCh. 5.8 - Prob. 5.1ARQCh. 5.8 - Prob. 5.2ARQCh. 5.8 - Prob. 5.3ARQCh. 5.8 - Prob. 5.4ARQCh. 5.8 - How are data models used for database development?...Ch. 5.8 - Prob. 5.6ARQCh. 5.8 - Prob. 5.7ARQCh. 5.8 - Prob. 5.8ARQCh. 5 - Draw an entity-relationship diagram that shows the...Ch. 5 - Consider the relationship between Adviser and...Ch. 5 - Prob. 5.3UYKCh. 5 - Prob. 5.4UYKCh. 5 - Study Figure 5-28 to understand the entities and...Ch. 5 - Working with your team, develop a list of seven...Ch. 5 - Modify the E-R model in Figure 5-28 to include a...Ch. 5 - Discuss the advantages and disadvantages of the...Ch. 5 - Transform the data model in Figure 5-28 into a...Ch. 5 - Prob. 5.1CE5Ch. 5 - Fill your database with sample data. Because you...Ch. 5 - Prob. 5.12CE5Ch. 5 - Explain why a one-table database could be stored...Ch. 5 - Prob. 5.14CS5Ch. 5 - Examine the columns in Figure 5-33. Name three...Ch. 5 - Prob. 5.16CS5Ch. 5 - Prob. 5.17CS5Ch. 5 - Explain the statement A database is an abstraction...Ch. 5 - Prob. 5.19CS5Ch. 5 - Prob. 5.2MMLCh. 5 - Prob. 5.21MML
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- can u solve this questionarrow_forward1. Unsigned Integers If we have an n-digit unsigned numeral dn-1d n-2...do in radix (or base) r, then the value of that numeral is n−1 r² di Σi=0 which is basically saying that instead of a 10's or 100's place we have an r's or r²'s place. For binary, decimal, and hex r equals 2, 10, and 16, respectively. Just a reminder that in order to write down a large number, we typically use the IEC or SI prefixing system: IEC: Ki = 210, Mi = 220, Gi = 230, Ti = 240, Pi = 250, Ei = 260, Zi = 270, Yi = 280; SI: K=103, M = 106, G = 109, T = 10¹², P = 1015, E = 10¹8, Z = 1021, Y = 1024. 1.1 Conversions a. (15 pts) Write the following using IEC prefixes: 213, 223, 251, 272, 226, 244 21323 Ki8 Ki 223 23 Mi 8 Mi b. (15 pts) Write the following using SI prefixes: 107, 10¹7, 10¹¹, 1022, 1026, 1015 107 10¹ M = 10 M = 1017102 P = 100 P c. (10 pts) Write the following with powers of 10: 7 K, 100 E, 21 G 7 K = 7*10³arrow_forwardanswer shoul avoid using AI and should be basic and please explainarrow_forward
- Node A is connected to node B by a 2000km fiber link having a bandwidth of 100Mbps. What is the total latency time (transmit + propagation) required to transmit a 4000 byte file using packets that include 1000 Bytes of data plus 40 Bytes of header.arrow_forwardanswer should avoid using AI and should be basic and explain pleasearrow_forwardasnwer should avoid using AIarrow_forward
- answer should avoid using AI (such as ChatGPT), do not any answer directly copied from AI would and explain codearrow_forwardWrite a c++ program that will count from 1 to 10 by 1. The default output should be: 1, 2, 3, 4, 5, 6 , 7, 8, 9, 10 There should be only a newline after the last number. Each number except the last should be followed by a comma and a space. To make your program more functional, you should parse command line arguments and change behavior based on their values. Argument Parameter Action -f, --first yes, an integer Change place you start counting -l, --last yes, an integer Change place you end counting -s, --skip optional, an integer, 1 if not specified Change the amount you add to the counter each iteration -h, —help none Print a help message including these instructions. -j, --joke none Tell a number based joke. So, if your program is called counter, counter -f 10 --last 4 --skip 2 should produce 10, 8, 6, 4 Please use the last supplied argument. If your code is called counter, counter -f 4 -f 5 -f 6 should count from 6. You should…arrow_forwardshow workarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Fundamentals of Information SystemsComputer ScienceISBN:9781305082168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Fundamentals of Information SystemsComputer ScienceISBN:9781337097536Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY