Non Functional Testing | Non Functional testing mean the testing performed for non functional part of software

Non-Functional Testing:

Non – Functional testing mean the testing performed for non functional part of software. This testing basically performed at the end of the development. This testing is related to Performance testing and Load Testing

As per ISO 9126, qualities of Non functional testing are Usability, Efficiency and Reliability. And the qualities can be calculated while executing test cases and scenario.

So, except the functional testing, non functional testing is also required for better development.

non functional testing, difference between functional and non functional testing, compatibility and migration testing, penetration testing, installation testing, security testing

Following main categories are described under the non functional testing:

i.                    Usability Testing

ii.                  Performance Testing

iii.                Load Factor

iv.                Ergonomics Testing

v.                  Stress & Volume Testing

vi.                Compatibility and Migration Teseting

vii.              Data Conversion Testing

viii.            Security / Penetration Testing

ix.                Operational Readiness Testing

x.                  Installation Testing

xi.                Security Testing (application security, network security, system security).

Non – Functional testing is performed based on the requirements and test scenarios cleared by the customer.

Finally: Non functional testing should be spoken always in a checkable method, not like “the system should be fast” or “the system should be easy to operate” which are not checkable.

Following is the Difference Between the Functional and Non-Functional Testing:

Difference between functional and non-functional testing

Software Testing Principle	Software Development Life Cycle	Unit Testing
Integration Testing	System Acceptance Testing	Sanity and Smoke Testing
Regression Testing	Non Functional Testing	Test Case
Test Scenario	Software Testing Rules	SQL For Software Testing
Test Case Design and Example	Test Base	Traceability Matrix
Boundary Value analysis	Decision Table in Software Testing	State Transition Definition
Use Case Testing	Testing Review	Techniques of Test Estimation
Test Plan Structure	Definition of Bug	Bug Life Cycle
Automation Testing Tools	Test Web Based Application	Software Testing Types

non functional testing, difference between functional and non functional testing, compatibility and migration testing, penetration testing, installation testing, security testing

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