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Assoli18 [71]
3 years ago
9

1. Describe data and process modeling concepts and tools.

Computers and Technology
2 answers:
kow [346]3 years ago
5 0

Answer:

data is the raw fact about its process

Explanation:

input = process= output

data is the raw fact which gonna keeps in files and folders. as we know that data is a information keep in our device that we use .

Masteriza [31]3 years ago
5 0

Answer:

Data and process modelling involves three main tools: data flow diagrams, a data dictionary, and process descriptions. Describe data and process tools. Diagrams showing how data is processed, transformed, and stored in an information system. It does not show program logic or processing steps.

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In mathematics, "quadrant I" of the cartesian plane is the part of the plane where x and y are both positive. Given a variable,
lbvjy [14]

Answer:

#include <iostream>

using namespace std;

struct Cartesian {

double x;

double y;

};

int main() {

// creating a pointer p of type struct Cartesian

struct Cartesian *p = new Cartesian ;

cout << " Enter x: ";

// accessing the structure variable x by arrow "->"

cin >> p->x;

cout << "Enter y: ";

// accessing the structure variable y by arrow "->"

cin >> p->y;

// expression to check whether x and y lie in Quadrant 1

if (p->x > 0 && p->y > 0) {

 cout << "X and Y are in Quadrant 1 ";

}

else

{

 cout << "x And y are not in Quadrant 1";

}

// deleting the struct pointer p

delete p;

return 0;

}

Explanation:

in order to locate memory in heap, keyword "new" is used in C++ so,

struct Cartesian *p = new Cartesian ;

in order to access data members of the structure using pointer we always use an arrow "->". otherwise a dot oprerator is used to access data members.

in order to check whether x and y lie in 1st quadrent, we must use && operator in our if condition. so

if (p->x > 0 && p->y > 0)

&& will return true iff x and y both are +ve.

deleting the struct pointer p is important beacuse we are allocating memory in heap so heap memory should be used a resource and must be release when not needed otherwise it can cause memory leakage problems. so  

delete p;

5 0
3 years ago
The following is a sequence of undo-log records written by two transactions T and U: &lt; START T&gt;; ; &lt; START U&gt;; ; ; ;
tatiyna

Answer:

Giving that: The following is a sequence of undo-log records written by 2 transactions T and U:

< START T >;

< T,A,10 >;

< START U >;

< U, B, 20 >;

< T, C, 30 >;

< U, D, 40 >;

< Commit U >;

< T, E, 50 >;

< Commit T >;

1. < START U >

      Recovery action in this case will be undo(-1) and undo(0). All restored to its original Value

     log records < T, A, 10 >,  < T, abort >; as written out

2. < T, E, 50 >

      Recovery action in this case will be undo(8) and redo(0). A and C is restored to its original value, B and D are set to 20 and 40

      log records <T, C, 30 >,  < T, A, 10 >,  < T, abort >  are written out

3. < Commit T >

      Recovery action in this case will be redo(7) and redo(4). A and C are set to 10 and 30, B and D are set to 20 and 40

7 0
3 years ago
the mail merge feature can be used to address the same letter to several different people , true or false
sergij07 [2.7K]
The answer is that it is true.
4 0
3 years ago
Read 2 more answers
Question 16 of 40
neonofarm [45]

Answer:

D hjjhhhhhhhhhhhhhhh

Explanation:

cuz

6 0
3 years ago
Read 2 more answers
Write the definition of a function typing_speed, that receives two parameters. The first is the number of words that a person ha
Lera25 [3.4K]

Answer:

The definition of function is as follows:

def typing_speed(number_of_words,Time_Interval):

number_of_words>=0  

Time_Interval>0

speed=float(60*number_of_words/Time_Interval)

return speed

Explanation:

Above function is defined step-by-step as follows:

        def typing_speed(number_of_words,Time_Interval):

  • A function named typing speed has two arguments, num_of_words and Time_Interval.

                             number_of_words>=0  

                             Time_Interval>0

  • The variable number_of_words is the number of words entered that a person enters, they must be greater than or equal to 0. Where as Time_Interval is the variable for counting the time span in seconds, it must be greater than 0.

                    speed=float(60*number_of_words/Time_Interval)

                    return speed

  • For determining result firstly the seconds are converted int minutes by multiplying with 60 and number_of_words is divided with Time_Interval in order to get words per minute. The return value will give speed which has data type float.

4 0
3 years ago
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