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Strike441 [17]
2 years ago
11

​ In a systems development life cycle (SDLC) model, the purpose of the _____ is to build a logical model of the new system.

Computers and Technology
1 answer:
faust18 [17]2 years ago
4 0

Answer:

Systems analysis phase.

Explanation:

In a systems development life cycle (SDLC) model, the purpose of the systems analysis phase is to build a logical model of the new system.

In the systems analysis phase, the system developer examines or analyzes the information or data about the requirements of an end-user, which are then implemented to achieve the organizational set goals and objectives.

Hence, systems analysis refers to the process of gathering data or factual informations, understanding processes, problem identification and suggestions of probable solutions for an effective and efficient functioning of the system.

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You would like the user of a program to enter a customer’s last name. Write a statement thaUse the variables k, d, and s so that
mojhsa [17]

Answer:

1st question:

Use the variables k, d, and s so that they can read three different values from standard input an integer, a float, and a string respectively. On one line, print these variables in reverse order with exactly one space in between each. On a second line, print them in the original order with one space in between them.

Solution:

In Python:

k = input()  #prompts user to input value of k i.e. integer value

d = input()  #prompts user to input value of d i.e. float value

s = input()  #prompts user to input value of s i.e. a string

print (s, d, k)  #displays these variable values in reverse order

print (k, d, s)#displays these variable values in original order

In C++:

#include <iostream>    // to use input output functions

using namespace std;   //to identify objects like cin cout

int main() {    //start of main function

  int k;   //declare int type variable to store an integer value

  float d; //  declare float type variable to store a float value

  string s;   //  declare string type variable to store an integer value

  cin >> k >> d >> s;    //reads the value of k, d and s

  cout << s << " " << d << " " << k << endl;     //displays these variables values in reverse order

  cout << k << " " << d << " " << s << endl;   } // displays these variable values in original order

Explanation:

2nd question:

You would like the user of a program to enter a customer’s last name. Write a statement that asks user "Last Name:" and assigns input to a string variable called last_name.

Solution:

In Python:

last_name = input("Last Name:")

# input function is used to accept input from user and assign the input value to last_name variable

In C++:

string last_name;  //declares a string type variable named last_name

cout<<"Last Name: ";  // prompts user to enter last name by displaying this message Last Name:

cin>>last_name; // reads and assigns the input value to string variable last_name

The programs alongwith their outputs are attached.

6 0
2 years ago
If you’d like to have multiple italicized words in your document, how would you change the font of each of these words?
Mariana [72]
You select the words and then format - italics
5 0
2 years ago
Read 2 more answers
Which of the following statements is true? A. Interpreted programs run faster than compiled programs. B. Compilers translate hig
alina1380 [7]

Answer:

B.

Explanation:

Computer programs are written in high level languages. Every language has its own set of syntax and semantics.

Computer only understands instructions in machine language which is written using strings of 0 and 1.

Thus, for execution of a high level language program, it is mandatory to convert high level instructions into machine instructions.

This translation into machine language is done in two ways – compilation or interpretation.

Some languages are compiled while others are interpreted.

Both compilers and interpreters are programs and process the high level language program as needed.

Compiler

Any program written in high level language is compiled.

The program is first analyzed before compilation. This process takes time. The analysis phase is called pre processing.

The program compilation stops only when the program is completely analyzed. Hence, it is difficult to locate the error in the program. This makes debugging easy.

Debugging is defined as removal of errors in the programs.

A compiler is responsible for converting high level language code into machine level code.

The complete program undergoes compilation at the same time.

A compiled program executes faster than an interpreted program.

A compiled program produce machine code which is a collection of 0 and 1, hence, it takes less time to execute.

Examples of compiled languages are C and C++.

Interpreter

Some high level languages are interpreted.

The high level language code is translated into an intermediate level code. This intermediate code is then executed.

The analysis of the program takes less time and takes place before interpretation begins. The analysis phase is called pre processing.

An interpreted program is translated one line at a time.

The program interpretation stops when an error is encountered. This makes debugging easy.

Debugging is defined as removal of errors in the programs.

Examples of interpreted languages include Python and Ruby.

6 0
2 years ago
Read 2 more answers
In this lab, you use the pseudocode in figure below to add code to a partially created Python program. When completed, college a
Elza [17]

Answer:

Python code is given below with appropriate comments

Explanation:

#Prompt the user to enter the test score and class rank.

testScore = input()

classRank = input()

#Convert test score and class rank to the integer values.

testScore = int(testScore)

classRank = int(classRank)

#If the test score is greater than or equal to 90.

if(testScore >= 90):

   #If the class rank is greater than or equal to 25,

   #then print accept message.

   if(classRank >= 25):

       print("Accept")

   

   #Otherwise, display reject message.

   else:

       print("Reject")

#Otherwise,

else:

   #If the test score is greater than or equal to 80.

   if(testScore >= 80):

       #If class rank is greater than or equal to 50,

       #then display accept message.

       if(classRank >= 50):

           print("Accept")

       

       #Otherwise, display reject message.

       else:

           print("Reject")

   

   #Otherwise,

   else:

       #If the test score is greater than or equal to

       #70.

       if(testScore >= 70):

           #If the class rank is greater than or equal

           #to 75, then display accept message.

           if(classRank >= 75):

               print("Accept")

           

           #Otherwise, display reject message.

           else:

               print("Reject")

       

       #Otherwise, display reject message.

       else:

           print("Reject")

4 0
2 years ago
There are N bulbs numbered from 1 to N, arranged in a row. The first bulb is plugged into the power socket and each successive b
Ksivusya [100]

Answer:

The code is given below with appropriate comments

Explanation:

// TestSolution class implementation

import java.util.Arrays;

public class TestSolution

{

  // solution function implementation

  public static int solution(int[] arr)

  {

      // declare the local variables

      int i, j, count = 0;

      boolean shines;

     

      // use the nested loops to count the number of moments for which every turned on bulb shines

      for (i = 0; i < arr.length; i++)

      {

          shines = true;

          for (j = i + 1; j < arr.length && shines; j++)

          {

              if (arr[i] > arr[j])

                  shines = false;

          }

          if (shines)

              count++;

      }

      // return the number of moments for which every turned on bulb shines

      return count;

     

  } // end of solution function

 

  // start main function

  public static void main(String[] args)

  {

      // create three arrays named A, B, and C

      int[] A = {2, 1, 3, 5, 4};

      int[] B = {2, 3, 4, 1, 5};

      int[] C = {1, 3, 4, 2, 5};

     

      // generate a random number N within the range range[1..100000]

      int N = 1 + (int)(Math.random() * 100000);

     

      // create an array named D of size N

      int[] D = new int[N];

     

      // fill the array D with the distinct random numbers within the range [1..N]

      int i = 0;

      while(i < N)

      {

          int num = 1 + (int)(Math.random() * N);          

          boolean found = false;

          for(int j = 0; j < i && !found; j++)

          {

              if(D[j] == num)

                  found = true;

          }

         

          if(!found)

          {

              D[i] = num;

              i++;

          }

      }          

     

      // print the elements and number of moments of the arrays A, B, and C

      System.out.println("Array A: " + Arrays.toString(A) + " and Moments: " + solution(A));

      System.out.println("Array B: " + Arrays.toString(B) + " and Moments: " + solution(B));

      System.out.println("Array C: " + Arrays.toString(C) + " and Moments: " + solution(C));

     

      // print the size and number of moments of the array D

      System.out.println("Size(N) of Array D: " + N + " and Moments: " + solution(D));

     

  } // end of main function

} // end of TestSolution class

3 0
2 years ago
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