READ: Functional vs. Non-Functional Tests
Functional Vs Non-Functional Testing:
Functional testing is performed using the functional specification provided by the client and verifies the system against the functional requirements.
Non-Functional testing checks the Performance, reliability, scalability and other non-functional aspects of the software system.
Functional testing is executed first
Non functional testing should be performed after functional testing
Manual testing or automation tools can be used for functional testing
Using tools will be effective for this testing
Business requirements are the inputs to functional testing
Performance parameters like speed , scalability are inputs to non-functional testing.
Functional testing describes what the product does
Nonfunctional testing describes how good the product works
Easy to do manual testing
Tough to do manual testing
Types of Functional testing are
Types of Non functional testing are
Functional testing tools:
- JUnit - Used mainly for Java applications and this can be used in Unit and system testing
- soapUI - This is an open source functional testing tool, mainly used for Web service testing. It supports multiple protocols such HTTP, SOAP and JDBC.
- Watir - This is functional testing tool for web applications. It supports tests executed at the web browser and uses ruby scripting language
Functional testing is process of testing functionalities of the system and ensures that the system is working as per the functionalities specified in the business document. The goal of this testing is to check whether the system is functionally perfect!!!