Testing

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15:37 Fri 9 Aug

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New Episode

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A new episode of Scott Mills is available. Listen now.

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15 of 74

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1.1. И

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Software systems are an integral part of our daily life. Most people have had experience with software

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that did not work as expected. Software that does not work correctly can lead to many problems

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including loss of money

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time or business reputation

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Software testing assesses software quality and helps reducing the risk of software failure in operation.

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Software testing is a set of activities to discover defects and evaluate the quality of software artifacts.

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These artifacts

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when being tested

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that it only consists of executing tests (i.e.

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running the software and checking the test results). However

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software testing also includes other activities and must be aligned with the software development lifecycle

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(see chapter 2).

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Another common misconception about testing is that testing focuses entirely on verifying the test object.

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Whilst testing involves verification

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i.e.

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involves validation

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which means checking whether the system meets users’ and other stakeholders’

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needs in its operational environment.

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Testing may be dynamic or static. Dynamic testing involves the execution of software

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while static testing

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does not. Static testing includes reviews (see chapter 3) and static analysis. Dynamic testing uses

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different types of test techniques and test approaches to derive test cases (see chapter 4).

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tatest cases (see chapter 4).g uses

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Testing is not only a technical activity. It also needs to be properly planned

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managed

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monitored and controlled (see chapter 5).

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Testers use tools (see chapter 6)

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but it is important to remember that testing is largely an intellectual

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activity

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requiring the testers to have specialized knowledge

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thinking and systems thinking (Myers 2011

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Roman 2018).

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The ISO/IEC/IEEE 29119-1 standard provides further information about software testing concepts.

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1.1.1. Test Objectives

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The typical test objectives are:

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• Evaluating work products such as requirements

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user stories

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• Triggering failures and finding defects

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• Ensuring required coverage of a test object

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• Reducing the level of risk of inadequate software quality

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• Verifying whether specified requirements have been fulfilled

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• Verifying that a test object complies with contractual

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legal

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• Providing information to stakeholders to allow them to make informed decisions

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• Building confidence in the quality of the test object

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• Validating whether the test object is complete and works as expected by the stakeholders