Part II: additional problems 1, 2, and 3 listed below.
For each problem:
a. Identify the given table as 1NF, 2NF, 3NF, or UNF (contains repeating group).
b. Identify all partial and transitive dependencies by drawing a dependency diagram
(for a UNF table, transform it to 1NF, then draw the dependency diagram).
c.
Transform all tables into 3NF by following the steps below. For c, you do NOT have
to draw dependency diagrams.
Example (it uses the Figure 6.3 as the starting point):
Step a:
PROJECT (PROJ NUM, EMP_NUM, PROJ_NAME, EMP_NAME, JOB_CLASS,
CHG HOUR, HOURS)
(has partial dependencies and transitive dependency) (so it is in 1NF)
Step b: draw dependency diagram (refer to Figure 6.3 in textbook)
Step c:
INF→ 2NF (put partial dependencies in separate tables)
EMPLOYEE (EMP_NUM, EMP_NAME, JOB_CLASS, CHG_HOUR)
(no PD, but has TD) (so it is in 2NF)
PROJECT (PROJ NUM, PROJ_NAME)
(no PD, no TD) (in fact it is already in 3NF)
Answers
In terms of question 1:
STUDENT (STUDENT SSN, ST_NAME, MAJOR, ADVISOR_NUM, ADV_NAME, ADV_OFFICE, ADV_PHONE, ST_CREDITHRS, CLASS_STANDING)
a. UNF (contains repeating group)
b. Dependency diagram:
STUDENT SSN → ST_NAME, MAJOR, ADVISOR_NUM, ST_CREDITHRS, CLASS_STANDING
ADVISOR_NUM → ADV_NAME, ADV_OFFICE, ADV_PHONE
c. Transformation to 3NF:
STUDENT (STUDENT SSN, ST_NAME, MAJOR, ADVISOR_NUM, ST_CREDITHRS, CLASS_STANDING)
ADVISOR (ADVISOR_NUM, ADV_NAME, ADV_OFFICE, ADV_PHONE)
Others are given in the document attached.
What is the text about?Normalization is the process of organizing a database into a set of tables with well-defined relationships between them to minimize redundancy and data inconsistencies. It involves breaking down a larger table into smaller, more focused tables that have a single topic or theme.
Therefore, the goal of normalization is to eliminate data redundancy and improve data integrity by avoiding common issues such as update anomalies, insertion anomalies, and deletion anomalies. By reducing the number of duplicate entries, normalization ensures that data is consistent and easier to maintain.
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See text below
Part II: additional problems 1, 2, and 3 listed below.
For each problem:
a. Identify the given table as 1NF, 2NF, 3NF, or UNF (contains repeating group).
b. Identify all partial and transitive dependencies by drawing a dependency diagram
(for a UNF table, transform it to 1NF, then draw the dependency diagram).
c.
Transform all tables into 3NF by following the steps below. For c, you do NOT have
to draw dependency diagrams.
Example (it uses the Figure 6.3 as the starting point):
Step a:
PROJECT (PROJ NUM, EMP_NUM, PROJ_NAME, EMP_NAME, JOB_CLASS,
CHG HOUR, HOURS)
(has partial dependencies and transitive dependency) (so it is in 1NF)
Step b: draw dependency diagram (refer to Figure 6.3 in textbook)
Step c:
INF→ 2NF (put partial dependencies in separate tables)
EMPLOYEE (EMP_NUM, EMP_NAME, JOB_CLASS, CHG_HOUR)
(no PD, but has TD) (so it is in 2NF)
PROJECT (PROJ NUM, PROJ_NAME)
(no PD, no TD) (in fact it is already in 3NF)
EMPLOYEE (EMP_NUM EMP_NAME, JOB CLASS)
3NF (no PD, no ID)
PROJECT (PROL NUM PROJ_NAME)
3NF (no PD, no TD)
ASSIGN (PROJ_NUM EMP NUM HOURS)
3NF (no PD, no TD)
1. STUDENT (STUDENT SSN, ST_NAME, MAJOR, ADVISOR_NUM, ADV_NAME, ADV_OFFICE, ADV_PHONE, ST_CREDITHRS, CLASS_STANDING)
where:
STUDENT SSN→ All other attributes
ADVISOR NUM→ ADV_NAME, ADV_OFFICE, ADV_PHONE
ST_CREDIT_HRS CLASS STANDING
Note: XYZ QRS means that XYZ determines QRS
You can also find this notation in figure 6.3 and definition of determination on page
62
2. MOVIE (MOVIE_NUM, MOVIE TITLE STAR_NUM STAR_NAME)
Sample data: You can determine pronary key based on the sample data
MOVIE NUM
M001
M002
MOVIE TITLE The Mummy
Crash
STAR NUM
S001
5000
S001
S003
STAR NAME Brendan Fraser Rachel Wenz
Brendan Fraser
Sandra Bullock
You may notice one mothe can feature many stars and one star can act in many movies
3 MOVIE (MOVIE_NUM MOVIE_TITLE, DIRECTOR NUM DIR_NAME
where:
MOVIE NUM
→ MOVIE TITLE DIRECTOR_NUM DIR_NAME
DIRECTOR NUM→ DIR_NAME
Requirement
Finish all problems parts Clearly mark each problem and put problems in the correct order. You can finish this homework in PowerPoint if you wish. Word is also acceptable as always.
Submission
Submit your solution file (Word or PowerPoint) through Canvas system electronically Printout (hard copies) or emails will NOT be accepted.
Turn in your homework on time. After the due time for every 24 hours it will be treated as a day late. I will use submission time in Canvas System as reference. 20% off for each day late.
Related Questions
Looking at the code below, how many times would the while loop run?
int num = 4;
while(num > 7 && num < 10){
num++;
System.out.println(num);
}
two
one
four
zero
Answers
Where the above loop above is given, the correct answer is: zero.
What is the explanation for the above response?The while loop in the code below will not run at all because the condition num > 7 && num < 10 is not satisfied since num is initially 4 and is not greater than 7.
Therefore, the code will skip over the while loop and move on to any subsequent code that follows it.
So the correct answer is: zero.
A loop in programming is a control structure that repeats a block of code until a certain condition is met or a certain number of iterations are completed.
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2. Consider a computer system called 3P2M in the following figure. The 3P2M system consists of three processors and two shared memories communicating over a shared bus, as shown in the following Figure. The system is operational as long as at least two processors can communicate with at least one of the two memories over the bus.
a) Construct the fault tree model of this system
b) Find all the minimal cut sets
c) Assume all the components fail exponentially with the following failure rates: processors (P1, P2, P3): 0.0001/hour; memories (M1, M2): 0.0001/hour; bus: 0.000001/hour. Find the system reliability at mission time t=100 hours.
Answers
1. The probability of the component surviving 200 hours is 0.9608 and still functioning after 400 hours is 0.8862.
2. Assuming all the components fail exponentially, the system's reliability at mission time t = 100 hours is 0.999985.
How to calculate system's reliability?1) To determine the probability that the component survives 200 hours, we need to use the survival function, which is the complement of the cumulative distribution function (CDF).
The CDF gives the probability that the component fails before or at time t, and is given by:
F(t) = 1 - e^(-∫z(u)du), where the integral is taken from 0 to t.
In this case, the failure rate function is z(t) = 2.0 × 10⁻⁶ t/hour for t > 0, so the integral becomes:
∫z(u)du = ∫2.0 × 10⁻⁶ u du = 10⁻⁶ u² + C,
where C is a constant of integration. Evaluating this integral from 0 to 200 hours:
∫0²⁰⁰ z(u)du = 10⁻⁶ (200)² = 0.04
So the CDF at 200 hours is:
F(200) = 1 - e^(-0.04) ≈ 0.0392
Therefore, the probability that the component survives 200 hours is:
P(T > 200) = 1 - F(200) ≈ 0.9608
To determine the probability that a component, which is functioning after 200 hours, is still functioning after 400 hours, we need to use the conditional probability formula:
P(T > 400 | T > 200) = P(T > 400 and T > 200) / P(T > 200)
The numerator represents the probability that the component survives beyond 400 hours given that it has already survived 200 hours, while the denominator represents the probability that the component survives beyond 200 hours.
The joint probability of surviving beyond 400 and 200 hours is:
P(T > 400 and T > 200) = P(T > 400)
since if the component survives beyond 400 hours, it necessarily also survives beyond 200 hours.
The probability of surviving beyond 400 hours is:
P(T > 400) = 1 - F(400) = 1 - (1 - e^(-∫z(u)du)) = e^(-∫z(u)du)
Using the same integral as before:
∫0⁴⁰⁰ z(u)du = 10⁻⁶ (400)² = 0.16
So:
P(T > 400) = e^(-0.16) ≈ 0.8521
The probability of surviving beyond 200 hours was found to be approximately 0.9608 in part (1).
Therefore, the probability that a component, which is functioning after 200 hours, is still functioning after 400 hours is:
P(T > 400 | T > 200) = P(T > 400 and T > 200) / P(T > 200)
= P(T > 400) / P(T > 200)
= (e^(-0.16)) / (0.9608)
≈ 0.8862
2) a) Fault tree model of the 3P2M system:
1
/ | \
P1 P2 P3
| | |
1| 1| 1|
| | |
B B B
| | |
1| 1| 1|
| | |
M1 M2 M1
\ / /
\ / /
1 1
where P1, P2, and P3 are the processors, M1 and M2 are the memories, B is the bus, and the numbers above the components represent their probabilities of not failing.
b) Minimal cut sets:
{P1, P2, M1}
{P1, P2, M2}
{P1, P3, M1}
{P1, P3, M2}
{P2, P3, M1}
{P2, P3, M2}
c) To calculate the system reliability, we can use the following formula:
R = e^(-λt)
where R is the system reliability, λ is the failure rate, and t is the mission time.
Using this formula, we can calculate the reliability of each component:
Processor: Rp = e^(-0.0001 × 100) = 0.9048
Memory: Rm = e^(-0.0001 × 100) = 0.9048
Bus: Rb = e^(-0.000001 × 100) = 0.9999
Next, use the minimal cut sets to calculate the system reliability. The minimal cut sets are:
{P1, M1, M2}
{P2, M1, M2}
{P3, M1, M2}
{P1, P2, M1}
{P1, P2, M2}
{P1, P3, M1}
{P1, P3, M2}
{P2, P3, M1}
{P2, P3, M2}
The system reliability can be calculated using the following formula:
Rsys = 1 - Σ(Ri × Π(Rj))
where Ri is the reliability of the i-th minimal cut set, and Π(Rj) is the product of the reliabilities of all components in the j-th minimal cut set.
Using this formula, calculate the system reliability:
Rsys = 1 - [(0.0952 × 0.0952 × 0.0952) + (0.0952 × 0.0952 × 0.0952) + (0.0952 × 0.0952 × 0.0952) + (0.9048 × 0.9048 × 0.0952) + (0.9048 × 0.9048 × 0.0952) + (0.9048 × 0.9048 × 0.0952) + (0.9048 × 0.9048 × 0.0952) + (0.9048 × 0.9048 × 0.0952) + (0.9048 × 0.9048 × 0.0952)]
Rsys = 0.999985
Therefore, the system reliability at mission time t=100 hours is approximately 0.999985.
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Outbound network traffic should be subjected to the same investigations and analysis as inbound network traffic.
True or False?
Answers
Answer:
True
Firewalls block most things coming in, but outbound traffic is less restricted. If a device on the network is accessed with a reverse shell, attackers outside the network have unrestricted access to within.
how to use command prompt
Answers
Answer:
Press the Windows key + R on your keyboard to open the Run dialog box. Then, type "cmd" into the box and press enter to open the command prompt.
Explanation:
which of the following is true of First Generation computer (a) it was the era of main frame computer b) it was the era of the minicomputer c) they are very reduced in size d) there was a advent of speech processing
Answers
The correct option is A, these where called main frame computers because they needed the size of a large room.
Which one is true of First Generation Computer?The first generation of computers refers to the period from the late 1940s to the mid-1950s, during which the first electronic computers were developed.
These computers were characterized by the use of vacuum tubes for circuitry and magnetic drums for memory storage. They were also very large and expensive, and were primarily used by government agencies and large corporations for scientific and military purposes.
These early computers were known as mainframe computers and were the size of a large room or even an entire building, then the correct option is A.
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Mr. Kurosaki Ichigo, Manager of Bleach Hospitality has suggested your name to the financial and advisory committee regarding preparation of set of financial statement of the year ended 31 December 2022 of The Bleach Hospitality.
Answers
Martin Luther king
obvio q es martin luther king obvoii
4.When information is entered into a computer, what happens?
Answers
An information becomes a Data after input into a computer. Data is any collection of numbers, alphabets or other symbols that have been coded into a format which can be input into a computer and processed. The sets of instructions that humans give computers are called software or program.
After being entered into a computer, information becomes data.
What is Information?Data is any collection of figures, letters, or other symbols that have been encoded in a way that allows them to be entered into and processed by a computer. Software or programs are the directives that people send to computers.
Information is a general term for everything with the capacity to inform. Information is most fundamentally concerned with the interpretation of what may be sensed. Each non-completely random natural process and any discernible pattern in any media can be said to communicate some level of information.
Other occurrences and artifacts, such as analogue signals, poems, photographs, music or other sounds, and currents, convey information in a more continuous manner as opposed to digital signals and other data, which employ discrete signs to do so.
Therefore, After being entered into a computer, information becomes data.
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1. Write a Java application that:
a. asks the user for the daily sales for each day of a week using a repetition loop and calculates its total.
b. calculates the average daily sales for the week
c. displays the total and average sales for the week.
Each of the three components of the program should be handled by a different method.
Answers
Here is a Java application that asks the user for the daily sales for each day of a week using a repetition loop and calculates its total, calculates the average daily sales for the week, and displays the total and average sales for the week.
The Programimport java.util.Scanner;
public class WeeklySales {
public static void main(String[] args) {
double[] sales = getDailySales();
double totalSales = calculateTotalSales(sales);
double averageSales = calculateAverageSales(sales);
displaySales(totalSales, averageSales);
}
public static double[] getDailySales() {
Scanner scanner = new Scanner(System.in);
double[] sales = new double[7];
for (int i = 0; i < 7; i++) {
System.out.print("Enter the daily sales for day " + (i+1) + ": ");
sales[i] = scanner.nextDouble();
}
scanner.close();
return sales;
}
public static double calculateTotalSales(double[] sales) {
double totalSales = 0;
for (int i = 0; i < sales.length; i++) {
totalSales += sales[i];
}
return totalSales;
}
public static double calculateAverageSales(double[] sales) {
double totalSales = calculateTotalSales(sales);
double averageSales = totalSales / sales.length;
return averageSales;
}
public static void displaySales(double totalSales, double averageSales) {
System.out.println("Total sales for the week: " + totalSales);
System.out.println("Average daily sales for the week: " + averageSales);
}
}
The getDailySales() method asks the user for the daily sales for each day of the week using a for loop and stores them in an array of doubles. It returns the array.
The calculateTotalSales(double[] sales) method calculates the total sales for the week by adding up all the daily sales in the array. It returns the total sales as a double.
The calculateAverageSales(double[] sales) method calculates the average daily sales for the week by dividing the total sales by the number of days (i.e., the length of the array). It returns the average sales as a double.
The displaySales(double totalSales, double averageSales) method displays the total and average sales for the week to the user using the println() method.
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Olivia is excited about with the golf clubs Justin gave her for her birthday, so she smiles broadly and jumps up and down. Olivia’s use of nonverbal communication is an example of which principle of nonverbal communication?
Group of answer choices
Nonverbal communication is more ambiguous than verbal
Nonverbal communication is more credible
Nonverbal messages structure conversation
Nonverbal communication conveys emotional messages
Answers
Olivia's use of nonverbal communication in this situation is an example of the principle that nonverbal communication conveys emotional messages.
What is communication?Olivia's broad smile and jumping up and down indicate her excitement and happiness about the gift she received. Nonverbal cues such as facial expressions, tone of voice, and body language often convey emotions more accurately and powerfully than words alone.
Therefore, Nonverbal communication refers to any form of communication that does not involve the use of words, such as facial expressions, body language, gestures, and tone of voice. It is an important aspect of human communication because it can convey a range of messages and emotions that cannot be expressed through words alone.
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Where is the Share button located for quick access? top left corner of the ribbon top right corner of the ribbon bottom left corner of a worksheet bottom right corner of a worksheet
The answer is B
Answers
The location of the Share button may vary depending on the specific software or platform you are using.
Where are they located?However, in many popular applications such as Microsoft Office, Go o gle Drive, or social media platforms like Fac e b o ok or T w i tter, the Share button is commonly located at the top or bottom of the screen, and usually appears as an icon that resembles an arrow pointing upwards or a rectangle with an arrow pointing out of it.
In Microsoft Excel, for example, the Share button can be found in the top right corner of the ribbon.
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Answer:
top right corner of the ribbon
Explanation:
got it right
Part One: Write an interactive program to calculate the volume and surface area of a three-dimensional object. Use the following guidelines to write your program:
Create a word problem that involves calculating the volume and surface area of a three-dimensional object. Choose one of the following:
Cube: surface area 6 s2, volume s3
Sphere: surface area 4πr², volume (4.0/3.0) π r3
Cylinder: surface area 2π r2 + 2 π rh, volume π r2 h
Cone: surface area πr(r + r2+h2), volume 1.0/3.0 π r2 h
Print the description of the word problem for the user to read.
Ask the user to enter the information necessary to perform the calculations. For instance, the value for the radius.
Use 3.14 for the value of π as needed.
Print the results of each calculation.
Write the pseudocode for this program. Be sure to include the needed input, calculations, and output.
Insert your pseudocode here:
print word problem
input statement that asks the user for the missing value (s), which is the side length of the cube
set variable to an integer value
int(input( ))
calculate Surface Area and Vol of a cube
sA = 6*s^2
Be sure to use the pow(x, y) correctly (x to the power of y)
vol = s^3
Be sure to use the pow(x, y) correctly
print statement that includes the surface area of the cube
Be sure to use + and str( ) correctly
print statement that includes the vol of the cube
Be sure to use + and str( ) correctly
Part Two: Code the program. Use the following guidelines to code your program.
To code the program, use the Python IDLE.
Using comments, type a heading that includes your name, today’s date, and a short description of the program.
Follow the Python style conventions regarding indentation and the use of white space to improve readability.
Use meaningful variable names.
Example of expected output: The output for your program should resemble the following screen shot. Your specific results will vary depending on the choices you make and the input provided.
I NEED THE OUTPUT
Answers
#Program to calculate surface area and volume of cube,cylinder,sphere and cone
[tex]\tt import \:math[/tex]
[tex]\tt def \:cube():[/tex]
[tex]\qquad\tt s=int(input("Enter\; side"))[/tex]
[tex]\qquad\tt v=math.pow(s,3)[/tex]
[tex]\qquad\tt a=6*math.pow(s,2)[/tex]
[tex]\qquad\tt print("Volume=",v)[/tex]
[tex]\qquad\tt print("Surface Area=",a)[/tex]
[tex]\tt def\: cone():[/tex]
[tex]\qquad\tt r=int(input("Enter\: radius"))[/tex]
[tex]\qquad\tt h=int(input("Enter\: height"))[/tex]
[tex]\qquad\tt v=(1/3)*math.pi*math.pow(r,2)*h[/tex]
[tex]\qquad\tt a=3.14*r(r+r**2+h**2)[/tex]
[tex]\qquad\tt print("Volume=",v)[/tex]
[tex]\qquad\tt print("Surface area=",a)[/tex]
[tex]\tt def\: cylinder():[/tex]
[tex]\qquad\tt r=int(input("Enter\: radius"))[/tex]
[tex]\qquad\tt h=int(input("Enter \;height"))[/tex]
[tex]\qquad\tt v=math.pi*r**2*h[/tex]
[tex]\qquad\tt a=2*3.14*r(r+h)[/tex]
[tex]\qquad\tt print("Volume=",v)[/tex]
[tex]\qquad\tt print("Surface area=",a)[/tex]
[tex]\tt def \:sphere():[/tex]
[tex]\qquad\tt r=int(input("Enter \:radius"))[/tex]
[tex]\qquad\tt v=(4/3)*3.14*math.pow(r,2)*h[/tex]
[tex]\qquad\tt a=4*3.14*r**2[/tex]
[tex]\qquad\tt print("Volume=",v)[/tex]
[tex]\qquad\tt print("Surface area=",a)[/tex]
[tex]\tt print("1.Cube")[/tex]
[tex]\tt print("2.Cone")[/tex]
[tex]\tt print("3.Cylinder")[/tex]
[tex]\tt print("4,Sphere")[/tex]
[tex]\tt ch=int(input("Enter \:choice"))[/tex]
[tex]\tt if \:ch==1:[/tex]
[tex]\tt\qquad cube()[/tex]
[tex]\tt elif\: ch==2:[/tex]
[tex]\qquad\tt cone()[/tex]
[tex]\tt elif\: ch==3:[/tex]
[tex]\qquad\tt cylinder()[/tex]
[tex]\tt elif \:ch==4:[/tex]
[tex]\qquad\tt sphere()[/tex]
Please find the code below:
What is interactive program?python
# Program to calculate the volume and surface area of a 3D object
# Created by [Your Name] on [Date]
# Description: This program calculates the volume and surface area of a cube, sphere, cylinder or cone based on user input
import math
# Print word problem
print("You are trying to determine the volume and surface area of a three-dimensional object.")
print("Please choose from one of the following shapes: cube, sphere, cylinder, or cone.")
# Ask user for shape choice
shape = input("What shape would you like to calculate? ")
# Calculate surface area and volume based on user input
if shape == "cube":
# Get user input for cube side length
s = int(input("Enter the length of one side of the cube: "))
# Calculate surface area and volume
sA = 6 * (s ** 2)
vol = s ** 3
# Print results
print("The surface area of the cube is " + str(sA) + " square units.")
print("The volume of the cube is " + str(vol) + " cubic units.")
elif shape == "sphere":
# Get user input for sphere radius
r = int(input("Enter the radius of the sphere: "))
# Calculate surface area and volume
sA = 4 * math.pi * (r ** 2)
vol = (4/3) * math.pi * (r ** 3)
# Print results
print("The surface area of the sphere is " + str(sA) + " square units.")
print("The volume of the sphere is " + str(vol) + " cubic units.")
elif shape == "cylinder":
# Get user input for cylinder radius and height
r = int(input("Enter the radius of the cylinder: "))
h = int(input("Enter the height of the cylinder: "))
# Calculate surface area and volume
sA = 2 * math.pi * r * (r + h)
vol = math.pi * (r ** 2) * h
# Print results
print("The surface area of the cylinder is " + str(sA) + " square units.")
print("The volume of the cylinder is " + str(vol) + " cubic units.")
elif shape == "cone":
# Get user input for cone radius and height
r = int(input("Enter the radius of the cone: "))
h = int(input("Enter the height of the cone: "))
# Calculate surface area and volume
sA = math.pi * r * (r + math.sqrt((h ** 2) + (r ** 2)))
vol = (1/3) * math.pi * (r ** 2) * h
# Print results
print("The surface area of the cone is " + str(sA) + " square units.")
print("The volume of the cone is " + str(vol) + " cubic units.")
else:
# Error message if user input is not recognized
print("Invalid shape choice.")
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Write structured pseudocode that describes how to buy a new shirt. Include at least two decisions and two loops.
Answers
Answer:
Here is a structured pseudocode that describes how to buy a new shirt, including at least two decisions and two loops:
```
procedure buy_shirt()
declare
desired_color: string
desired_pattern: string
desired_size: string
desired_price: integer
found_shirt: boolean
begin
print "What color shirt do you want?"
read desired_color
print "What pattern do you want?"
read desired_pattern
print "What size do you want?"
read desired_size
print "What price are you willing to pay?"
read desired_price
found_shirt := false
while not found_shirt do
print "Searching for a shirt..."
for each shirt in store do
if shirt.color = desired_color and shirt.pattern = desired_pattern and shirt.size = desired_size and shirt.price <= desired_price then
found_shirt := true
break
end if
end for
end while
if found_shirt then
print "Found shirt!"
print shirt.color, " ", shirt.pattern, " ", shirt.size, " ", shirt.price
print "Do you want to buy it?"
read answer
if answer = "yes" then
buy shirt
end if
else
print "No shirt found."
end if
end procedure
```
This pseudocode includes two decisions: one to determine whether the desired shirt has been found, and another to determine whether the user wants to buy the shirt. It also includes two loops: one to search the store for the desired shirt, and another to allow the user to enter their answer.
Explanation:
You use the ATM machine to withdraw money from your checking account. What set of steps does the DBMS need to perform in order for you to complete your transaction?
Answers
To execute your transaction at the ATM, the DBMS must authenticate your account, check your account balance, process the withdrawal request, update the account balance, and produce a transaction record.
What is an ATM's UI? Which machine components are used for input and output?The automated teller machine's block diagram largely comprises of two input devices and four output units. The speaker, display screen, receipt printer, and cash depositor are output devices, whereas the card reader and keypad are input devices.
I want to take money out of my bank account.Fill out a withdrawal paper at a bank branch to make a withdrawal. You can choose to have money taken out of your checking or savings account.
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2. A painting company has determined that for every 115 square feet of wall space, one gallon of paint and eight hours of labor will be required. The company charges $18.00 per hour for labor. Write a Java program (from scratch) that allows the user to enter the wall space to be painted and the price of paint per gallon. The program should have methods that return the following data:
a. The number of gallons of paint required
b. The cost of the paint
c. The hours of labor required
d. The labor charges
e. The total cost of the paint job
Then it should display the results on the screen.
Answers
Note that an example Java program that calculates the data required is given as follows.
import java.util.Scanner;
public class PaintingCompany {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
// Prompt the user for the wall space and paint price
System.out.print("Enter the wall space in square feet: ");
double wallSpace = input.nextDouble();
System.out.print("Enter the price of paint per gallon: ");
double paintPrice = input.nextDouble();
// Calculate the data required
double gallonsOfPaint = calcGallonsOfPaint(wallSpace);
double costOfPaint = calcCostOfPaint(gallonsOfPaint, paintPrice);
double hoursOfLabor = calcHoursOfLabor(wallSpace);
double laborCharges = calcLaborCharges(hoursOfLabor);
double totalCost = calcTotalCost(costOfPaint, laborCharges);
// Display the results
System.out.println("Gallons of paint required: " + gallonsOfPaint);
System.out.println("Cost of paint: $" + costOfPaint);
System.out.println("Hours of labor required: " + hoursOfLabor);
System.out.println("Labor charges: $" + laborCharges);
System.out.println("Total cost of the paint job: $" + totalCost);
}
// Method to calculate the number of gallons of paint required
public static double calcGallonsOfPaint(double wallSpace) {
return Math.ceil(wallSpace / 115);
}
// Method to calculate the cost of the paint
public static double calcCostOfPaint(double gallonsOfPaint, double paintPrice) {
return gallonsOfPaint * paintPrice;
}
// Method to calculate the hours of labor required
public static double calcHoursOfLabor(double wallSpace) {
return Math.ceil(wallSpace / 115) * 8;
}
// Method to calculate the labor charges
public static double calcLaborCharges(double hoursOfLabor) {
return hoursOfLabor * 18.0;
}
// Method to calculate the total cost of the paint job
public static double calcTotalCost(double costOfPaint, double laborCharges) {
return costOfPaint + laborCharges;
}
}
What is the explanation for the above response?This program uses five methods to calculate the required data based on the user input. The main method prompts the user for the wall space and paint price, calculates the required data using the other methods, and displays the results on the screen.
Each of the other methods performs a specific calculation and returns the result. The calcGallonsOfPaint method calculates the number of gallons of paint required, the calcCostOfPaint method calculates the cost of the paint, the calcHoursOfLabor method calculates the hours of labor required, the calcLaborCharges method calculates the labor charges, and the calcTotalCost method calculates the total cost of the paint job.
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You have been hired to create a Grilled Rump Steak ordering app. The app should have a class named GrilledRumpSteak which contains data about a single rump. The GrilledRumpSteak class should include the following:
▪ Private instance variables to store the size of the rump (either small, medium, or large), the number of salsa toppings, the number of tomato toppings, and the number of mushroom toppings.
▪ Constructor(s) that set all the instance variables.
▪ Public methods to get and set the instance variables.
▪ A public method named calcCost( ) that returns the cost of the rump as a double. The Grilled
Rump Steak cost is determined by: Large: R200 + 30 per topping Medium: R150 + R20 per
topping Small: R120 + R15 per topping
▪ public method named getDescription( ) that returns a String containing the rump size, quantity
of each topping.
Write test code to create several grilled rump steaks and output their descriptions. For example, a large rump with one salsa, one tomato, and two mushroom toppings should cost a total of R320. Now Create a GrilledRumpSteakOrder class that allows up to three grilled rump steaks to be saved in order. Each grilled rump steak saved should be a GrilledRumpSteak object. Create a method calcTotal() that returns the cost of the order
In android programming
Answers
Answer:
Here is the Java code for the Grilled Rump Steak ordering app:
```
public class GrilledRumpSteak {
private String size;
private int salsaToppings;
private int tomatoToppings;
private int mushroomToppings;
public GrilledRumpSteak(String size, int salsaToppings, int tomatoToppings, int mushroomToppings) {
this.size = size;
this.salsaToppings = salsaToppings;
this.tomatoToppings = tomatoToppings;
this.mushroomToppings = mushroomToppings;
}
public String getSize() {
return size;
}
public void setSize(String size) {
this.size = size;
}
public int getSalsaToppings() {
return salsaToppings;
}
public void setSalsaToppings(int salsaToppings) {
this.salsaToppings = salsaToppings;
}
public int getTomatoToppings() {
return tomatoToppings;
}
public void setTomatoToppings(int tomatoToppings) {
this.tomatoToppings = tomatoToppings;
}
public int getMushroomToppings() {
return mushroomToppings;
}
public void setMushroomToppings(int mushroomToppings) {
this.mushroomToppings = mushroomToppings;
}
public double calcCost() {
double cost = 0;
if (size.equals("Large")) {
cost = 200 + (30 * (salsaToppings + tomatoToppings + mushroomToppings));
} else if (size.equals("Medium")) {
cost = 150 + (20 * (salsaToppings + tomatoToppings + mushroomToppings));
} else if (size.equals("Small")) {
cost = 120 + (15 * (salsaToppings + tomatoToppings + mushroomToppings));
}
return cost;
}
public String getDescription() {
return size + " rump with " + salsaToppings + " salsa topping(s), " + tomatoToppings + " tomato topping(s), and " + mushroomToppings + " mushroom topping(s)";
}
}
```
Here is the Java code for the GrilledRumpSteakOrder class that allows up to three grilled rump steaks to be saved in order:
```
public class GrilledRumpSteakOrder {
private ArrayList<GrilledRumpSteak> order;
public GrilledRumpSteakOrder() {
order = new ArrayList<GrilledRumpSteak>();
}
public void addGrilledRumpSteak(GrilledRumpSteak rump) {
if (order.size() < 3) {
order.add(rump);
} else {
System.out.println("Maximum of 3 Grilled Rump Steaks per order.");
}
}
public double calcTotal() {
double total = 0;
for (GrilledRumpSteak rump : order) {
total += rump.calcCost();
}
return total;
}
}
```
To test the code, you can write the following code in the main method:
```
public static void main(String[] args) {
GrilledRumpSteak rump1 = new GrilledRumpSteak("Large", 1, 1, 2);
GrilledRumpSteak rump2 = new GrilledRumpSteak("Medium", 2, 0, 1);
GrilledRumpSteak rump3 = new GrilledRumpSteak("Small", 0, 3, 1);
System.out.println(rump1.getDescription() + " - Cost: R" + rump1.calcCost());
System.out.println(rump2.getDescription() + " - Cost: R" + rump2.calcCost());
System.out.println(rump3.getDescription() + " - Cost: R" + rump3.calcCost());
GrilledRumpSteakOrder order = new GrilledRumpSteakOrder();
order.addGrilledRumpSteak(rump1);
order.addGrilledRumpSteak(rump2);
order.addGrilledRumpSteak(rump3);
System.out.println("Total cost of order: R" +
What is the purpose of the Input Message feature? to alert the user to data entry mistakes to immediately correct data entry mistakes to inform a user that data validation has been established to send message to data entry with what mistakes have been found
Answer is c
Answers
The purpose of the Input Message feature is to inform the user that data validation has been established.
What is the feature used for?This feature is often used in data entry forms to provide helpful guidance to users on how to correctly input data. The message typically appears as a pop-up or tooltip that appears when the user clicks on the relevant cell or field.
The message can include information about valid input formats, allowable values, or other data requirements. By using this feature, users can be confident that they are entering valid data, and they can avoid making mistakes that could lead to errors or system failures.
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The first set of information you see on your monitor, after signing in and going through any security messages is (are) _____.
Answers
The first set of information you see on your monitor, after signing in and going through any security messages are icons for programs, a taskbar or a login screen.
Display on the monitor through security messagesThe first set of information that is typically displayed on a monitor after signing in and going through any security messages will depend on the user's settings and preferences.
It could be a desktop background image, icons for various programs or applications, a taskbar or dock with shortcuts, or a login screen for the user's email or messaging platform.
Some users may have a customized startup sequence that automatically launches certain applications or programs upon login.
Ultimately, the initial display will be determined by the user's preferences and settings.
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What does PACT stand for AT&T worker ?
Answers
Answer: advanced paging protocol
Which of the following tech careers builds infrastructure for networking, telephones, radio, and other
communication channels?
Customer service representative
Web designer
Social media marketer
Internet service technician
I want to review this question later. (Optional)
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Answers
The tech careers builds infrastructure for networking, telephones, radio, and other communication channels is Internet service technician. Option D
The different tech careers for infrastructureThe tech career that builds infrastructure for networking, telephones, radio, and other communication channels is Internet service technician.
Internet service technicians install, maintain, and repair various communication systems and devices such as routers, switches, modems, and cables.
They also ensure that the network and communication channels are functioning efficiently and securely.
Unlike customer service representatives, web designers, and social media marketers, internet service technicians have a specialized skill set that allows them to work on the technical aspects of communication infrastructure.
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Write a class named Car that has the following member variables:
• Year. An int that holds the car's model year.
• Make. A string object that holds the make if the car.
• Speed. An int that holds the car's current speed
In addition, the class should have the following member functions program that implements class structure.
• Constructor. The constructor should accept the car's vear and make arguments and assign these values to the object's year and make member variables. The constructor should initialize the speed member variable to 0.
• Accessors. Appropriate accessor methods should be created to allow values to be retrieved from the object's year, make, and speed member variables
• accelerate. The accelerate method should add 5 to the speed member variable each time it is called.
• brake. The brake method should subtract from the speed member variable each time it is called.
Write a program that will create the Car object. It will ask the users for the number of times the car will accelerate and brake.
(LOOK AT PIC BELOW, PYTHON))
Answers
An example implementation of the Car class in Python is given as follows:
class Car:
def __init__(self, year, make):
self.year = year
self.make = make
self.speed = 0
def get_year(self):
return self.year
def get_make(self):
return self.make
def get_speed(self):
return self.speed
def accelerate(self):
self.speed += 5
def brake(self):
self.speed -= 5
if self.speed < 0:
self.speed = 0
car = Car(2022, "Tesla")
accelerate_times = int(input("How many times do you want to accelerate? "))
brake_times = int(input("How many times do you want to brake? "))
for i in range(accelerate_times):
car.accelerate()
print("Accelerating... Speed is now", car.get_speed())
for i in range(brake_times):
car.brake()
print("Braking... Speed is now", car.get_speed())
What is the explanation for the above response?This program creates a Car object with the year 2022 and make "Tesla", and then prompts the user for the number of times to accelerate and brake. It uses a for loop to call the accelerate and brake methods on the Car object the specified number of times, and prints the updated speed after each call.
The prompt requires creating a Car class with member variables year (int), make (string), and speed (int), as well as appropriate member functions, including constructor, accessors, accelerate (adds 5 to speed), and brake (subtracts from speed). The program should allow user input for how many times the car should accelerate and brake.
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help with 7.4 code practice: question 2
Answers
When tackling coding questions, it's important to take a structured approach. Start by understanding the problem statement and the input and output requirements.
Then, break down the problem into smaller sub-problems or steps that you can solve individually. This helps to simplify the problem and makes it easier to solve.When writing code, it's also important to follow best practices such as using descriptive variable names, commenting your code, and using meaningful function names. These practices make your code easier to read and understand for yourself and other developers who may work with your code in the future.Lastly, it's important to test your code thoroughly to ensure that it works as expected. This includes testing for edge cases and potential errors. By testing your code, you can catch any bugs early on and prevent them from causing issues later on.When approaching coding questions, it's important to take a structured approach, follow best practices, and test your code thoroughly. This can help you write efficient, readable, and error-free code.For such more question on practices: brainly.com/question/27412820
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Every storage device has a directory containing a list or its files
Answers
A directory listing all of a storage device's files exists on every storage device. The term "root directory" refers to the main directory. You can create smaller lists from a root directory. A sub-directory is the name given to each list.
What is an illustration of a storage device?Any sort of computational gear that is used to store, transfer, or extract data files and objects is referred to as a storage device. Information can be held and stored by storage devices both momentarily and permanently. They could be within or outside a computer, server, or another computing device. The distinctions between primary and secondary storage devices are outlined in the table below. Examples include hard drives, solid-state drives, CD-ROMs, DVDs, and Blu-ray discs.A removable device, such as an external HDD or USB flash drive, or one that is built inside a computing system, like an SSD, can serve as a storage medium. Magnetic tape, CDs, and non-volatile memory (NVM) cards are some examples of additional storage media.To learn more about storage devices, refer to:
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In this lab, you assign variables in a Python program. The program, which is saved in a file named NewAge.py, calculates your age in the year 2050.
# This program calculates your age in the year 2050.
# Input: None
# Output: Your current age followed by your age in 2050
# Create your variables here
myNewAge = myCurrentAge + (2050 - currentYear)
print("My Current Age is " + str(myCurrentAge))
print("I will be " + str(myNewAge) + " in 2050.")
Answers
This Python program calculates a person's age in the year 2050.
What is the explanation for the above response?The program assigns a variable myCurrentAge to the person's current age and calculates the person's age in the year 2050 by adding the difference between 2050 and the current year to their current age. The resulting age in 2050 is stored in a variable myNewAge.
The program then prints the person's current age and their age in 2050 using the print() function, converting the variables to strings using the str() function and concatenating them with the relevant text strings.
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Implement above using c programming language
Answers
Answer:
1. Click on the Start button
2. Select Run
3. Type cmd and press Enter
4. Type cd c:\TC\bin in the command prompt and press Enter
5. Type TC press Enter
6. Click on File -> New in C Editor window
7. Type the program
8. Save it as FileName.c (Use shortcut key F2 to save)
19
20
21
22
23
24-
Deep Blue
25
26
27
28
29
30
31
32
33
34
35
Answers
Answer:
Here are the numbers from 19 to 35, with Deep Blue inserted between 23 and 24:
19, 20, 21, 22, Deep Blue, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35.
Design a program that prompts the user to enter a number within the range of 1 through 10. The program should display the Roman numeral version of that number. If the number is outside the range of 1 through 10, the program should display an error message.write a pseudocode and draw a flow chart using the right diagrams and shapes
Answers
Answer:
Pseudocode:
Prompt the user to enter a number between 1 and 10
Read the input from the user
If the input is between 1 and 10, continue to step 4. Otherwise, display an error message and end the program.
Create an array of roman numerals I, II, III, IV, V, VI, VII, VIII, IX, X
Subtract 1 from the input number and use it as an index to retrieve the corresponding roman numeral from the array
Display the roman numeral to the user
End the program
Flowchart:
[Start] --> [Prompt user to enter a number] --> [Read input]
--> {input between 1 and 10?}
--> [Create array of roman numerals]
--> [Subtract 1 from input and use as index to retrieve corresponding roman numeral]
--> [Display roman numeral to user] --> [End]
--> [Display error message and end] --> [End]
Explanation:
Respond to the following in a minimum of 175 words:
• What top 2 factors should Emma consider before purchasing antivirus software?
.
- Why are these the top factors to consider?
- Where should she make the purchase?
Answers
Emma needs to think about how well and with what programmes the security software works. She can buy the product from trustworthy retailers like Norton or McAfee.
What function does security software serve?Antivirus software stops malware from harming your device by identifying, containing, and/or removing malicious code. Modern antivirus programmes automatically update themselves to offer security against the most recent viruses and malware.
How well does security software work?Antivirus software only successfully detects adware in 25% of cases on average. Unfortunately, according to statistics on computer viruses and antivirus software, the fight is being won by malicious apps.
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Write a program that computes a patient's bill for a hospital stay. The different components of the program are
• The PatientAccount class will keep track of the patient's charges. It will keep track of the number of days spent in the hospital.
• The surgery method will have the charges for at least five types of surgery. It will update the charges member variable. A data file will contain at least five types of surgery and its cost. Both type and cost will be separated by commas.
• The pharmacy method will have the charges for at least five types of medication. It will update the charges member variable. A data file will contain at least five types of medication and its cost. Both type and cost will be separated by commas
• The dayCharge method will update the days sent member variable.
• The setName method will assign the name of the patient
• Each day in the hospital costs $1,000
The program will have a menu that allows the user to enter type of surgery, enter type of medication, number of days in the hospital and check the patient out of the hospital.
When the patient checks out, the total charges will be displayed.
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Answers
here's an example implementation of the program in Python
class PatientAccount:
def __init__(self, name):
self.name = name
self.days_spent = 0
self.charges = 0
def surgery(self, surgery_type, cost):
self.charges += cost
print(f"{surgery_type} surgery added to charges.")
def pharmacy(self, medication_type, cost):
self.charges += cost
print(f"{medication_type} medication added to charges.")
def dayCharge(self):
self.days_spent += 1
print("Day charge added.")
def setName(self, name):
self.name = name
print(f"Name set to {name}.")
def getTotalCharges(self):
total_charges = self.days_spent * 1000 + self.charges
print(f"Total charges: ${total_charges}")
return total_charges
patient = PatientAccount("John Doe")
while True:
print("Hospital Bill Menu:")
print("1. Add surgery")
print("2. Add medication")
print("3. Add day charge")
print("4. Set patient name")
print("5. Check out and calculate total charges")
choice = input("Enter choice (1-5): ")
if choice == "1":
surgery_type = input("Enter type of surgery: ")
cost = float(input("Enter cost: "))
patient.surgery(surgery_type, cost)
elif choice == "2":
medication_type = input("Enter type of medication: ")
cost = float(input("Enter cost: "))
patient.pharmacy(medication_type, cost)
elif choice == "3":
patient.dayCharge()
elif choice == "4":
name = input("Enter patient name: ")
patient.setName(name)
elif choice == "5":
total_charges = patient.getTotalCharges()
break
else:
print("Invalid choice. Try again.")
print("Thank you for using the hospital bill program.")
Explanation:
This program defines a PatientAccount class that keeps track of the patient's name, days spent in the hospital, and charges. It also includes methods to add surgery and medication charges, add day charges, and set the patient name. The getTotalCharges method calculates the total charges based on the number of days spent in the hospital and the accumulated charges.
The program uses a while loop to display a menu of options and accept user input. The user can add surgery or medication charges, add a day charge, set the patient name, or check out and calculate the total charges. The loop continues until the user chooses to check out.
Which of the following are easy/difficult to handle in Virtual-Circuit and Datagram subnets, and why?
i) Router memory space
ii)Quality-of-service
iii) Congestion control
iv) Address parsing time
Answers
Quality-of-service and Congestion control are easy to handle in Virtual-Circuit.
Router memory space and Address parsing time are easy to handle in Datagram subnets.
Why is Router memory space difficult to handle in Virtual-Circuit?i) Router memory space:
In virtual-circuit subnets, routers need to maintain the connection state information for the duration of the virtual circuit. This information can take up a significant amount of memory space, which may become a problem if a large number of virtual circuits are present.
On the other hand, in datagram subnets, routers do not need to maintain connection state information, so memory space is not as much of an issue.
ii) Quality-of-service:
Virtual-circuit subnets are generally better suited for providing quality-of-service guarantees, such as guaranteed bandwidth, low latency, and minimal packet loss. This is because virtual circuits are established beforehand, and the network can reserve resources for the duration of the connection. Datagram subnets, on the other hand, do not provide such guarantees, as packets are forwarded on a best-effort basis.
iii) Congestion control:
Virtual-circuit subnets typically have better congestion control mechanisms, as they can react quickly to changing network conditions by adjusting the routing tables and resource allocations. Datagram subnets may have a more difficult time with congestion control, as they rely on packet-level mechanisms, such as packet dropping, to regulate network traffic.
iv) Address parsing time:
In general, address parsing time is not significantly affected by the choice of subnet type, as address parsing is typically done at the packet level, rather than at the virtual-circuit level.
However, it is worth noting that virtual-circuit subnets may have slightly higher parsing overhead, as they need to maintain connection state information for each virtual circuit.
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State of Indiana v. IBM is an example of a lengthy and expensive lawsuit that arose out of a failed software development project. In 2004, Indiana’s new governor, Mitch Daniels, announced that his state’s welfare system was “broken” and “plagued by high error rates, fraud, wasted dollars and poor conditions for its employees, and very poor service to its clients.”
In 2006, the state of Indiana and IBM entered into a 10-year and $1.3 billion Master Services Agreement (MSA) to update the state’s welfare system. The SDA required the establishment of call centers and remote electronic access for welfare applications. A paperless documentation system would reduce fraud. Indiana would benefit from the cost-savings in hiring fewer caseworkers if welfare applicants could apply online.
The IBM/Indiana MSA was extremely complex, containing more than 160 pages and extensive attachments, which included ten exhibits, twenty-four schedules and ten appendices. The parties agreed to a ten-year MSA, but Indiana terminated the agreement less than three years into the SDA, declaring that IBM was in breach. In its twelve-county pilot implementation, Indiana documented several problems early on, such as call center miscues, the delayed processing of applications and multiple problems with processing applications for the redetermination of welfare benefits.
Both parties filed suit against each other for breach of contract. Indiana charged that IBM’s product was slow, incorrectly imaged key documents, missed scheduling benchmarks and failed to satisfy Indiana’s policy objectives. IBM defended against these claims, charging that Indiana had created delays by continually changing specifications. IBM also invoked a commercial impracticability defense based upon the large number of new claims for welfare that flooded the system in the wake of the 2008 economic meltdown.
The Indiana Supreme Court found that IBM had materially breached its contract with the state. IBM, however, had negotiated millions of dollars in early termination fees that the state had to pay. The Indiana Supreme Court upheld the lower courts’ awarding of $40 million in assignment fees and $9,510,795 in equipment fees to IBM. The trial court’s award of $2,570,621 in early termination damage payments and $10,632,333 in prejudgment interest to IBM was reversed and the case was remanded to determine both parties’ damages.
This case illustrates the need for careful negotiation by attorneys to protect their clients if the contract is terminated and to clearly specify rights and remedies in the event of breach. Computer companies must be realistic as to what projects they can successfully complete and deliver, while also protecting themselves in the negotiation stage against foreseeable hazards, such as unclear benchmark specifications and excessive change order.
Also read: IBM over Indiana over $70Million
Read: https://www.cio.com/article/2393757/ibm-beats-indiana-in-outsourcing-case-no-one--deserves-to-win-.html
Do some research about contracts.
How could this project have been managed better? What improvements would you suggest in these types of contract?
What items will you pay special attention to when dealing with contracts?
Please add references
Answers
The Indiana v. IBM case highlights the importance of careful management of software development contracts to avoid costly legal disputes.
What is the software development about?To better manage these types of contracts, there are several improvements that can be made:
Clearly define the scope and objectives of the project: In this case, the parties agreed on a complex 160-page contract with extensive attachments that contained numerous exhibits, schedules, and appendices. However, the contract did not clearly define the scope and objectives of the project, which led to disagreements about what was expected from both parties.
Set realistic deadlines and benchmarks: The project timelines and benchmarks must be set realistically based on the complexity of the project. In this case, Indiana accused IBM of missing scheduling benchmarks and having slow delivery, while IBM accused Indiana of creating delays by continually changing specifications.
Establish clear communication channels: It is important to establish clear communication channels to facilitate collaboration between parties. In this case, there were several problems with call center miscues and the delayed processing of applications, indicating a breakdown in communication channels between Indiana and IBM.
Anticipate potential issues and include dispute resolution mechanisms in the contract: Parties must anticipate potential issues and include dispute resolution mechanisms in the contract to resolve issues efficiently. In this case, both parties filed lawsuits against each other, resulting in lengthy legal proceedings and costly damages.
When dealing with contracts, it is essential to pay special attention to several items, such as:
Clearly defining the scope and objectives of the projectSetting realistic deadlines and benchmarksEstablishing clear communication channelsAnticipating potential issues and including dispute resolution mechanisms in the contractReferences:
E. Seng, “Indiana v. IBM: An Outsourcing Odyssey Gone Wrong,” The Journal of Business and Technology Law, vol. 10, no. 1, 2015.
D. A. Rice, “Indiana and IBM's Failed Welfare System Project: What Went Wrong?,” CIO, Oct. 2012, https://www.cio.com/article/2393757/ibm-beats-indiana-in-outsourcing-case-no-one--deserves-to-win-.html.
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