Editing Acceptance testing (section)

== Types of acceptance testing ==
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Typical types of acceptance testing include the following

; [[Verification and validation#Activities|User acceptance testing]]:This may include factory acceptance testing (FAT), i.e. the testing done by a vendor before the product or system is moved to its destination site, after which site acceptance testing (SAT) may be performed by the users at the site.<ref>{{Cite news |last=Prasad |first=Durga |date=March 29, 2012 |title=The Difference Between a FAT and a SAT |work=Kneat.com |url=http://www.kneat.com/2012/03/29/the-difference-between-a-fat-and-a-sat/ |access-date=July 27, 2016 |archive-date=June 16, 2017 |archive-url=https://web.archive.org/web/20170616183242/http://www.kneat.com/2012/03/29/the-difference-between-a-fat-and-a-sat/ |url-status=dead }}</ref>
; [[Operational acceptance testing]]:Also known as operational readiness testing, this refers to the checking done to a system to ensure that processes and procedures are in place to allow the system to be used and maintained. This may include checks done to back-up facilities, procedures for disaster recovery, training for end users, maintenance procedures, and security procedures.<ref>{{Cite web |last=Turner |first=Paul |date=2020-10-05 |title=Operational Readiness |url=https://commissioningandstartup.com/operational-readiness/ |access-date=2023-02-18 |website=Commissioning and Startup |language=en-US}}</ref>
; Contract and regulation acceptance testing
: In contract acceptance testing, a system is tested against acceptance criteria as documented in a contract, before the system is accepted. In regulation acceptance testing, a system is tested to ensure it meets governmental, legal and safety standards.<ref>{{Cite news |last=Brosnan |first=Adeline |date=2021-01-12 |title=Acceptance Testing in Information Technology Contracts |language=en-US |work=LegalVision |url=https://legalvision.com.au/acceptance-testing-information-technology-contracts/ |access-date=2023-02-18 |url-status=live |archive-url=https://archive.today/20250503101917/https://legalvision.com.au/acceptance-testing-information-technology-contracts/ |archive-date=2025-05-03}}</ref>

; Factory acceptance testing
: Acceptance testing conducted at the site at which the product is developed and performed by employees of the supplier organization, to determine whether a component or system satisfies the requirements, normally including hardware as well as software.<ref>{{Cite web |title=ISTQB Standard glossary of terms used in Software Testing |url=http://glossar.german-testing-board.info/ |access-date=March 15, 2019 |archive-date=November 5, 2018 |archive-url=https://web.archive.org/web/20181105182224/http://glossar.german-testing-board.info/ |url-status=dead }}</ref>

; Alpha and beta testing
: Alpha testing takes place at developers' sites and involves testing of the operational system by internal staff, before it is released to external customers. Beta testing takes place at customers' sites and involves testing by a group of customers who use the system at their own locations and provide feedback, before the system is released to other customers. The latter is often called "field testing".<ref>{{Cite web |last=Hamilton |first=Thomas |date=2020-04-03 |title=Alpha Testing Vs Beta Testing – Difference Between Them |url=https://www.guru99.com/alpha-beta-testing-demystified.html |access-date=2023-02-18 |website=www.guru99.com |language=en-US}}</ref>