Thursday, August 11, 2016

Software Testing

Testing is the process that allows the system developers to confirm that the software what they have developed is satisfy the customer requirement. Testing can be termed as confidential level of software

Verification and validation

verification and validation (V&V ) is the name given to the checking and analysis processes that ensure that software confirms to its specification and melts the needs of the customers who are paying for the software.

Verification and validation is whole life cycle process. lt starts with requirements reviews and continues through design reviews and code inspections to product testing. Verification and validation are not the same thing

Verification : The process of evaluating work-products (not the actual final product) of a development phase to determine whether they meet the specified requirements for that phase. In verification process we should as the question are we building the product right?

Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies specified business requirements. In this process we ask the main question are we building the right process?

These definitions tell us that the role of verification involves checking that the software confirms to its specification. You should check that the system meets its specified functional and non-functional requirements. Validation, however is a more general process. you should make sure that the software meets the expectation of the customer, it goes beyond checking the conformance of the system to its specification to showing that the software does what the customer expects as distinct from what has been specified.

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