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CS608 Assignment 2 Solution and Discussion Spring 2020

CS608 - Software Verification and Validation

zaasmi Cyberian's Gold last edited by
Re: CS608 Assignment 2 Solution and Discussion

Software Verification and Validation (CS608)

Assignment # 02

Total marks = 20

Due Date: Jun 12, 2020

Please carefully read the following instructions before attempting assignment.

RULES FOR MARKING

It should be clear that your assignment would not get any credit if:

The assignment is submitted after the due date.
The submitted assignment does not open or file is corrupt.
Strict action will be taken if submitted solution is copied from any other student or from the internet.
You should concern the recommended books to clarify your concepts as handouts are not sufficient.

You are supposed to submit your assignment in .doc or docx format.

Any other formats like scan images, PDF, zip, rar, ppt and bmp etc. will not be accepted.

Topics Covered:

· Control flow graph

NOTE

No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date.

If you people find any mistake or confusion in assignment (Question statement), please consult with your instructor before the deadline. After the deadline no queries will be entertained in this regard.

For any query, feel free to email at [email protected]

Question No. 1. (Marks 15)

Draw the control flow graph for the following code.
```
int main(){

       int n=0;

       switch(n){

              case 0:

                      printf("Value is 0");

                      break,

              case 1:

                      printf("Value is 1");

                      break;

              case 2:

                      printf("Value is 2");

                      break;

              default:

                      printf("Invalid value");

                      break;

       }

       int a,b,number;

       while(number==0){

              number=number++;

       }

       return number;

       if(number>0){

              if(a>70){

                      number=a/b;

              }

              else{

                      number=a*b;

              }

       }

       else{

              if(a>70 && b<0){

                      number=a-b;

              }

              else{

                      number=b-a;

              }

       }

}
```
Question No. 2. (Marks 5)

Write complete path for the graph developed in question 1.
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SOLVED CS608 Assignment 2 Solution and Discussion
CS608 - Software Verification and Validation • cs608 assignment 2 solution discussion fall 2019 • • zareen

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Solution:
Following are the conditions for successful task completion.
a. PNG file format
b. File size less than 40KB
c. Image resolution 300x300
d. File must be selected
Profile picture will be uploaded provided all of the mentioned conditions are satisfied. Following is the Decision Table for the given scenario. Conditions Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 Case 7 Case 8 Format PNG PNG PNG PNG PNG PNG PNG PNG Size Less than 40KB Less than 40KB Less than 40KB Less than 40KB Greater or equal to 40KB Greater or equal to 40KB Greater or equal to 40KB Greater or equal to 40KB Resolution 300x300 300x300 Not 300x300 Not 300x300 300x300 300x300 Not 300x300 Not 300x300 File Selected Yes No Yes No Yes No Yes No Output Picture Uploaded Error Message Error Message Error Message Error Message Error Message Error Message Error Message Conditions Case 9 Case 10 Case 11 Case 12 Case 13 Case 14 Case 15 Case 16 - - - - - - - - - Format Not PNG Not PNG Not PNG Not PNG Not PNG Not PNG Not PNG Not PNG Size Less than 40KB Less than 40KB Less than 40KB Less than 40KB Greater or equal to 40KB Greater or equal to 40KB Greater or equal to 40KB Greater or equal to 40KB Resolution 300x300 300x300 Not 300x300 Not 300x300 300x300 300x300 Not 300x300 Not 300x300 File Selected Yes No Yes No Yes No Yes No Output Error Message Error Message Error Message Error Message Error Message Error Message Error Message Error Message
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Ideas Solution 2:
#include<iostream> #include<fstream> #include<stdio.h> using namespace std; class Employee{ private: int code; char name[20]; float salary; public: void read(); void display(); int getEmpCode() { return code;} int getSalary() { return salary;} void updateSalary(float s) { salary=s;} }; void Employee::read(){ cout<<"Enter employee code: "; cin>>code; cout<<"Enter name: "; cin.ignore(1); cin.getline(name,20); cout<<"Enter salary: "; cin>>salary; } void Employee::display() { cout<<code<<" "<<name<<"\t"<<salary<<endl; } fstream file; void deleteExistingFile(){ remove("EMPLOYEE.DAT"); } void appendToFille(){ Employee x; x.read(); file.open("EMPLOYEE.DAT",ios::binary|ios::app); if(!file){ cout<<"ERROR IN CREATING FILE\n"; return; } file.write((char*)&x,sizeof(x)); file.close(); cout<<"Record added sucessfully.\n"; } void displayAll(){ Employee x; file.open("EMPLOYEE.DAT",ios::binary|ios::in); if(!file){ cout<<"ERROR IN OPENING FILE \n"; return; } while(file){ if(file.read((char*)&x,sizeof(x))) if(x.getSalary()>=10000 && x.getSalary()<=20000) x.display(); } file.close(); } void searchForRecord(){ Employee x; int c; int isFound=0; cout<<"Enter employee code: "; cin>>c; file.open("EMPLOYEE.DAT",ios::binary|ios::in); if(!file){ cout<<"ERROR IN OPENING FILE \n"; return; } while(file){ if(file.read((char*)&x,sizeof(x))){ if(x.getEmpCode()==c){ cout<<"RECORD FOUND\n"; x.display(); isFound=1; break; } } } if(isFound==0){ cout<<"Record not found!!!\n"; } file.close(); } void increaseSalary(){ Employee x; int c; int isFound=0; float sal; cout<<"enter employee code \n"; cin>>c; file.open("EMPLOYEE.DAT",ios::binary|ios::in); if(!file){ cout<<"ERROR IN OPENING FILE \n"; return; } while(file){ if(file.read((char*)&x,sizeof(x))){ if(x.getEmpCode()==c){ cout<<"Salary hike? "; cin>>sal; x.updateSalary(x.getSalary()+sal); isFound=1; break; } } } if(isFound==0){ cout<<"Record not found!!!\n"; } file.close(); cout<<"Salary updated successfully."<<endl; } void insertRecord(){ Employee x; Employee newEmp; newEmp.read(); fstream fin; file.open("EMPLOYEE.DAT",ios::binary|ios::in); fin.open("TEMP.DAT",ios::binary|ios::out); if(!file){ cout<<"Error in opening EMPLOYEE.DAT file!!!\n"; return; } if(!fin){ cout<<"Error in opening TEMP.DAT file!!!\n"; return; } while(file){ if(file.read((char*)&x,sizeof(x))){ if(x.getEmpCode()>newEmp.getEmpCode()){ fin.write((char*)&newEmp, sizeof(newEmp)); } fin.write((char*)&x, sizeof(x)); } } fin.close(); file.close(); rename("TEMP.DAT","EMPLOYEE.DAT"); remove("TEMP.DAT"); cout<<"Record inserted successfully."<<endl; } int main() { char ch; deleteExistingFile(); do{ int n; cout<<"ENTER CHOICE\n"<<"1.ADD AN EMPLOYEE\n"<<"2.DISPLAY\n"<<"3.SEARCH\n"<<"4.INCREASE SALARY\n"<<"5.INSERT RECORD\n"; cout<<"Make a choice: "; cin>>n; switch(n){ case 1: appendToFille(); break; case 2 : displayAll(); break; case 3: searchForRecord(); break; case 4: increaseSalary(); break; case 5: insertRecord(); break; default : cout<<"Invalid Choice\n"; } cout<<"Do you want to continue ? : "; cin>>ch; }while(ch=='Y'||ch=='y'); return 0; }
U

CS608 GDB 1 Solution and Discussion
CS608 - Software Verification and Validation • cs608 gdb solution regression testing human and machine time cost of regression testing • • uneza

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@zaasmi said in CS608 GDB 1 Solution and Discussion:

@zaasmi said in CS608 GDB 1 Solution and Discussion:

Regression Testing

Regression Testing is a type of testing that is done to verify that a code change in the software does not impact the existing functionality of the product. This is to make sure the product works fine with new functionality, bug fixes or any change in the existing feature. Previously executed test cases are re-executed in order to verify the impact of change.

An effective regression strategy, save organizations both time and money. As per one of the case study in banking domain, regression saves up to 60% time in bug fixes(which would have been caught by regression tests) and 40% in money
CS608 GDB 1 Solution and Discussion
CS608 - Software Verification and Validation • cs608 gdb 1 solution discussion fall 2019 • • zareen

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Suppose ABC Software Company is assigned a project by Islamabad Capital Territory (ICT) police. The software company has experienced testers in its fleet. The task is to develop an Internet of Things (IoT) based application for traffic monitoring in the capital with solid documentation utilizing incomplete requirement documents. With short deadline, the test cases need to be automated using any of the following two options for improving the quality of the end product.

Scripted Testing
Exploratory Testing
Justify your selection of either testing technique in the given scenario with logical arguments
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Q. 1 Solution:
de2fb639-7d68-4547-a14b-9931eb534e6f-image.png

Q. 2 Solution:
a975cffb-cb7d-4a2f-8cc1-f5d7e5c6b993-image.png

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CS608 Assignment 2 Solution and Discussion Spring 2020

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