Presentation created by Sanjay S Manvatkar Asst.Prof. BJS College - - PowerPoint PPT Presentation

Presentation created by

Sanjay S Manvatkar Asst.Prof. BJS College Pune

• 6. Software Testing
• Topic Covered in

this chapter:-

• Introduction / Definition of

software testing.

• Need of Software Testing.
• Objectives of software

Testing.

• PDCA Cycle.
• STLC
• (Software Testing Life Cycle)
• Types of Testing.:-
• 1. Manual V/S Automated
• 2. Concept of Verification & Validation.
• 3. Black Box Testing & White Box

Testing.

• 4. Unit Testing.
• 5. Integration Testing

–

• 1. Top –Down Integration.

–

• 2. Bottom- Up Integration.

–

• 3. Sandwich Integration.

–

• 4. Incremental Integration.
• 6. System Testing.
• 7. Performance Testing.
• 8. Stress Testing.
• 9. Smoke Testing.
• 10. User Acceptance Testing

–

• 1. Alpha Testing.

–

• 2. Beta Testing.

Types

• f

Testing

1.Manual Testing 2.Automated Testing 3.Black Box Testing 4.White Box Testing

• 5. Unit

Testing 6.Integration Testing 7.System Testing 8.Performanc e Testing 9.Stress Testing 10.Smoke Testing 11.User Acceptance Testing

Introduction / Definition of software testing.

• “Testing is a technique of software to find

the errors or mistake in a particular software design.”

• The process of testing an integrated

hardware & software system to verify that the system meets its specified requirements.

• It implies unconditional or conditional,

direct or indirect mistakes from our design phase to implementing phase in particular software area.

Need of Software Testing

• Software testing is necessary because all make
• mistakes. Some of those mistakes are

unimportant but some of them are expensive & dangerous.

• We need to check everything & anything we

produce because things can always go wrong- human make mistakes all the time.

• Software testing is very important because,

1. software testing is really required to point out defects and errors that were made during the development phase.

• 2) Testing is essential since it makes sure
• f the customers reliability & their

satisfaction in the application.

• 3) It is very important to ensure the quality
• f product or software application.
• 4) Testing is required for an effective

performance of software application or product.

• Objectives of Software Testing:-
• 1) Finding defects which may get created

by the programmer while developing the software.

• 2. To prevent defects.
• 3. To make sure that the end result meets the

Business & user requirements.

• 4. To Ensure that it satisfies the

BRS ( Business Requirements Specification) & SRS (System Requirements Specification)

• 5. To gain the confidence of the customers by

providing them quality product.

• 6. Comparing product/ Expected outputs.

Software testing is an important part of software development process. Consider (PDCA Cycle)

PDCA Cycle

• Element of PDCA

Act Plan Check DO

• Plan:- Define the goal & plan how to achieve that

goal.

• Do/Execute:-Depending on the plan strategy

decide the plan stage we do execution accordingly in this phase.

• Check:-Check or Test to make sure that we are

moving accordingly to plan & we are getting the desired result.

• Act:-During the check cycle if any issues are there

than take appropriate action accordingly & revise the plan again.

Life Cycle of Software Testing

• Software testing is a check activity to validate whether

the actual results matches with expected results & to ensure that the software system is bug free.

• (STLC) is a process of software testing in which specific

steps to be executed in a define sequence to ensure that the quality goals have been met.

• STLC is defined as “a sequence of different activities

performed by the testing team to ensure the quality of the software or the product.

Phases of STLC

Requirements Analysis Test Planning Test Analysis Test Case Developmen t Environmen t Setup Test Execution Test Closure

• Phases of STLC
• Phase 1:-Requirement Analysis:- In requirement analysis phase tester

analyze the requirement to find out whether the requirements are testable or not. This phase also identify the scope of the software testing.

• Phase 2:-Test Planning:- In this phase, all the planning related to

testing is done & tester identifies the activities & resources that are helpful to meet the testing objectives.

• Phase 3:-Test Analysis:-This phase determines the guidelines that has

to be tested.

• Phase 4:- Test Case Development:-This phase involves the actual test

case creation. The main objectives of this phase is to prepare test case creation.

• Phase 5:- Test Environment Setup:-This phase includes the setup or

installation process of software & hardware which is required for testing the application.

• Phase 6:- Test Execution:-Test execution is the process of executing

the code & comparing the expected & actual result.

• Phase 7:-Test Closure:-This phase marks the formal closure of testing.

It involves checking if all the project deliverable are delivered, achieving the test-ware, test environment & documenting the learning.