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Operational Acceptance Testing (OAT) is used to conduct operational readiness (pre-release) of a product, service or system as part of a quality management system. OAT is a common type of non-functional software testing, used mainly in software development and software maintenance projects. This type of testing focuses on the operational readiness of the system to be supported, and/or to become part of the production environment. Hence, it is also known as operational readiness testing (ORT) or operations readiness and assurance (OR&A) testing. Functional testing within OAT is limited to those tests which are required to verify the ''non-functional'' aspects of the system. According to the International Software Testing Qualifications Board (ISTQB), OAT may include checking the backup/restore facilities, IT disaster recovery procedures, maintenance tasks and periodic check of security vulnerabilities.,〔ITSQB http://istqbexamcertification.com/what-is-acceptance-testing/〕 and whitepapers on ISO 29119 and Operational Acceptance by Anthony Woods, and ISO 25000 and Operational Acceptance Testing by Dirk Dach et al., OAT generally includes:〔White Paper: Operational Acceptance Testing, Business Continuity Assurance. December 2012 Dirk Dach, Dr Kai-Uwe Gawlik, Mark Mevert〕 * Component Testing * Failover (Within the same data centre) : * Component fail-over : * Network fail-over * Functional Stability : * Accessibility : * Conversion : * Stability : * Usability * IT Service Management (Supportability) * Monitoring and Alerts (to ensure proper alerts are configured in the system if something goes wrong) * Portability : * Compatibility : * Interoperability : * Installation and Backout : * Localization * Recovery (across data centres) : * Application/system recovery : * Data recovery * Reliability : * Backup and Restoration (Recovery) : * Disaster Recovery : * Maintainability : * Performance, Stress and Volume, : * Procedures (Operability) and Supporting Documentation (Supportability) : * Security and Penetration During OAT changes may be made to environmental parameters which the application uses to run smoothly. For example, with Microsoft Windows applications with a mixed or hybrid architecture, this may include: Windows services, configuration files, web services, XML files, COM+ components, web services, IIS, stored procedures in databases, etc. Typically OAT should occur after each main phase of the development life cycle: design, build, and functional testing. In sequential projects it is often viewed as a ''final'' verification before a system is released; where in agile and iterative projects, a more frequent execution of OAT occurs providing stakeholders with assurance of continued stability of the system and its operating environment. An approach used in OAT may follow these steps: * Design the system, * Assess the design, * Build the system, * Confirm if built to design, * Evaluate the system addresses business functional requirements, * Assess the system for compliance with non-functional requirements, * Deploy the system, * Assess operability and supportability of the system. For running the OAT test cases, the tester normally has exclusive access to the system or environment. This means that a single tester would be executing the test cases at a single point of time. For OAT the exact Operational Readiness quality gates are defined: both entry and exit gates. The primary emphasis of OAT should be on the operational stability, portability and reliability of the system. References 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「operational acceptance testing」の詳細全文を読む スポンサード リンク
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