1.
Software Testing

2.
OVERVIEW
 Introduction
 Test process
 Test plan
 Types of testing

3.
INTRODUCTIONTO SOFTWARE TESTING
 process of executing a program or system with the intent
of finding error
 more than just error detection
 operating the software under controlled conditions to:
o Verification
o Error detection
o Validation

4.
TESTPROCESS
 creation of test strategy, creation of test plan/design and execution of
tests
Stages of test process are:
o Unit testing
o Module testing
o Sub-system testing
o System testing
o Acceptance testing
Unit
Testing Module
Testing Sub-system
Testing System
Testing Acceptance
Testing
Fig. : Stages in Test process

5.
TESTPLAN
 document which is created before the testing process
 Includes: types of testing to be performed, high level scope of the project,
environmental requirement of testing process
 not just management documents also need of software engineers involved
in designing and carrying out system tests
Test plan template
• Test plan identifier
• Introduction
• References
• Test items
• Features to be tested
• Features not to be tested
• Approach
• Item pass/Fail criteria
• Test environment
• Risks
• Approvals

6.
TYPES OF TESTING
 Black box testing
 White box testing
 Alpha testing
 Beta testing
 Clean room testing
 Defect testing

7.
I. BLACKBOXTESTING
o Testing either functional or non-functional without reference to
the internal structure of the component or system
Fig. : Black box testing
o Also known as Functional testing
Input Output
Executable
Program
Types of Testing (Continued)

8.
II. WHITEBOXTESTING
o Also known as Structural testing
o Testing with reference to the internal structure of the component
or system
o Applicable to lower levels of testing: Unit Testing ,Integration
Testing
o Performance of application can be tested
Fig. : White box testing
Test Data
Component
code for
testing
Test Output
Types of Testing (Continued)

9.
iii. Alpha Testing:
o Is employed for Off the self software before software goes to beta testing
iv. Beta testing:
• Is released to a limited audience outside for further program fault or bugs
v. Clean room testing:
o related to incremental development model,In which incremented software
delevered to customer with less important features which are added on each
increment.And customers feedback is taken in account
vi. Defect Testing :
o Main goal is to identify defects before the system is delevered to the customer
Types of Testing (Continued)

10.
CONCLUSION. . .
Software testing- an important phase in SDLC which makes a
software product less faulty, and satisfying product which
meets the requirements of user…

11.
Any questions??
Thank you.