overview of software testing : types and methodologies

1. Software Testing
Sajedah abukhdeir

2. CONTENT
• Introduction
• What is Software Testing ?
• benefits of Software TestingGoals of Testing
• Testing Strategies in Software Engineering
• Types of Software Testing
• Testing Methodology
• Software Testing lifecycle - Phases
• Types of Performance Testing
• Conclusion

3. INTRODUCTION
• Software Testing is a method to check whether
the actual software product matches expected
requirements and to ensure that software
product is Defect free. It involves execution of
software/system components using manual or
automated tools to evaluate one or more
properties of interest. The purpose of software
testing is to identify errors, gaps or missing
requirements in contrast to actual
requirements.

4. BENEFITS OF SOFTWARE
TESTING
• cost-Effective: It is one of the important advantages of software
testing. Testing any IT project on time helps you to save your
money for the long term. In case if the bugs caught in the earlier
stage of software testing, it costs less to fix.
• Security: It is the most vulnerable and sensitive benefit of software
testing. People are looking for trusted products. It helps in
removing risks and problems earlier.
• Product quality: It is an essential requirement of any software
product. Testing ensures a quality product is delivered to
customers.
• Customer Satisfaction: The main aim of any product is to give
satisfaction to their customers. UI/UX Testing ensures the best
user experience.

5. TESTING STRATEGIES IN SOFTWARE
ENGINEERING
• Unit Testing: This software testing basic approach is
followed by the programmer to test the unit of the
program. It helps developers to know whether the
individual unit of the code is working properly or not.
• Integration testing: It focuses on the construction and
design of the software. You need to see that the
integrated units are working without errors or not.
• System testing: In this method, your software is
compiled as a whole and then tested as a whole. This
testing strategy checks the functionality, security,
portability, amongst others.

6. TYPES OF SOFTWARE TESTING
• Functional Testing
• Non-Functional Testing or Performance Testing
• Maintenance (Regression and Maintenance)

7. TESTING METHODOLOGIES
• White box testing
• Black-box testing

8. • White box testing
 Knowledge of the internal program design and
code required.
 Tests are based on coverage of code
statements, branches, paths, conditions.
• Black box testing
 No knowledge of internal program design or code
required.
 Tests are based on requirements and functionality.

9. WHITE-BOX TESTING
Component
code
Test
outputs
Test data
Derives
Tests

10. SOFTWARE TESTING LIFECYCLE -
PHASES
• Requirements study
• Test Case Design and Development
• Test Execution
• Test Closure
• Test Process Analysis

11. REQUIREMENTS STUDY
• Testing Cycle starts with the study of client’s
requirements.
• Understanding of the requirements is very essential for
testing the product.

12. ANALYSIS & PLANNING
• Test objective and coverage
• Overall schedule
• Standards and Methodologies
• Resources required, including necessary
training
• Roles and responsibilities of the team members
• Tools used

13. Test Case Design and Development
•Component Identification
•Test Specification Design
•Test Specification Review
Test Execution
•Code Review
•Test execution and evaluation
•Performance and simulation

14. Test Closure
• Test summary report
• Project De-brief
• Project Documentation
Test Process Analysis
Analysis done on the reports and improving the
application’s performance by implementing new
technology and additional features.

15. TYPES OF PERFORMANCE
TESTING
Stress Testing
Volume Testing
Configuration Testing
Compatibility Testing
Regression Testing
Recovery Testing
Maintenance Testing
Documentation Testing
Usability Testing

16. CONCLUSION
 In order to be cost effective, the testing must be concentrated
on areas where it will be most effective.
 The testing should be planned such that when testing is
stopped for whatever reason, the most effective testing in the
time allotted has already been done.
 The absence of an organizational testing policy may result in
too much effort and money will be spent on testing,
attempting to achieve a level of quality that is impossible or
unnecessary.

17. Thanks