Difference between Alpha & Beta testing

 

Alpha Testing	Beta Testing
It is done by internal testers of the organization.	It is done by real users.
It is an internal test, performed within the organization.	It is an external test, carried out in the user's environment.
Alpha Testing uses both black box and white box testing techniques	Beta Testing only uses the black box testing technique.
Identifies possible errors.	Checks the quality of the product.
Developers start fixing bugs as soon as they are identified.	Errors are found by users and feedback is necessary.
Long execution cycles.	It only takes a few weeks.
It can be easily implemented as it is done before the near end of development.	It will be implemented in the future version of the product.
It is performed before Beta Testing.	It is the final test before launching the product on the market.
It answers the question: Does the product work?	It answers the question: Do customers like the product?
Functionality and usability are tested.	Usability, functionality, security and reliability are tested with the same depth.