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Acceptance Testing | Software Testing

  • Difficulty Level : Basic
  • Last Updated : 30 Apr, 2019

Prerequisite – Software Testing | Basics, Types of Software Testing
Acceptance Testing is a method of software testing where a system is tested for acceptability. The major aim of this test is to evaluate the compliance of the system with the business requirements and assess whether it is acceptable for delivery or not.

Standard Definition of Acceptance Testing:

It is a formal testing according to user needs, requirements and business processes conducted to determine whether a system satisfies the acceptance criteria or not and to enable the users, customers or other authorized entities to determine whether to accept the system or not.

Acceptance Testing is the last phase of software testing performed after System Testing and before making the system available for actual use.

Types of Acceptance Testing:

  1. User Acceptance Testing (UAT):
    User acceptance testing is used to determine whether the product is working for the user correctly. Specific requirements which are quite often used by the customers are primarily picked for the testing purpose. This is also termed as End-User Testing.
  2. Business Acceptance Testing (BAT):
    BAT is used to determine whether the product meets the business goals and purposes or not. BAT mainly focuses on business profits which are quite challenging due to the changing market conditions and new technologies so that the current implementation may have to being changed which result in extra budgets.
  3. Contract Acceptance Testing (CAT):
    CAT is a contract which specifies that once the product goes live, within a predetermined period, the acceptance test must be performed and it should pass all the acceptance use cases.
    Here is a contract termed as Service Level Agreement (SLA), which includes the terms where the payment will be made only if the Product services are in-line with all the requirements, which means the contract is fulfilled.

    Sometimes, this contract happens before the product goes live. There should be a well defined contract in terms of the period of testing, areas of testing, conditions on issues encountered at later stages, payments, etc.

  4. Regulations Acceptance Testing (RAT):
    RAT is used to determine whether the product violates the rules and regulations that are defined by the government of the country where it is being released. This may be unintentional but will impact negatively on the business.

    Generally, the product or application that is to be released in the market, has to go under RAT, as different countries or regions have different rules and regulations defined by its governing bodies. If any rules and regulations are violated for any country then that country or the specific region then the product will not be released in that country or region. If the product is released even though there is a violation then only the vendors of the product will be directly responsible.

  5. Operational Acceptance Testing (OAT):
    OAT is used to determine the operational readiness of the product and is a non-functional testing. It mainly includes testing of recovery, compatibility, maintainability, reliability etc.
    OAT assures the stability of the product before it is released to the production.
  6. Alpha Testing:
    Alpha testing is used to determine the product in the development testing environment by a specialized testers team usually called alpha testers.
  7. Beta Testing:
    Beta testing is used to assess the product by exposing it to the real end-users, usually called beta testers in their environment. Feedback is collected from the users and the defects are fixed. Also, this helps in enhancing the product to give a rich user experience.

Use of Acceptance Testing:

  • To find the defects missed during the functional testing phase.
  • How well the product is developed.
  • A product is what actually the customers need.
  • Feedbacks help in improving the product performance and user experience.
  • Minimize or eliminate the issues arising from the production.
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