what is the difference between validation and verification?

Question

system analysis point of view not programmers

Answer 1

Verification is a quality process used to evaluate whether or not a product, service, or system complies with a regulation, specification, or conditions imposed at the start of a development phase. Verification can be in development, scale-up, or production. This is often an internal process.

Validation is the process of establishing documented evidence that provides a high degree of assurance that a product, service, or system accomplishes its intended requirements. This often involves acceptance and suitability with external customers.

Answer 2

Well, consider a form where someone is asked to enter an email address.

Validation would be checking that it is in the right format to be an email address - does it have an @ in it, does it have two or more names after the @ and one or more before, etc. A script would check this and show an error message if the conditions aren't met.

However this doesn't check that it is actually the email of the person entering the data. This would be the job of verification - for instance the script could send a message to the address entered, asking the person to click on a link to verify that they were the person who had submitted the form.

Answer 3

if had a movie gift card that said valid until the 25th of august and it was the 26th then it wouldn't be valid, thats validation.

you have a boarding pass for a plane trip it has your name on it but not a picture of you the person taking your boarding pass will ask for some verification, which will be your id or license or watev so they can make sure you are who you say you are.

Answer 4

When you get on a train you validate your ticket. When the inspector gets on, he may verify that the ticket is not a forgery. You can now apply that to anything.