Testing Phase in SDLC

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  • 0:03 Testing Phase of SDLC
  • 1:01 Types of Tests
  • 2:21 Lesson Summary
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Lesson Transcript
Instructor: Noel Ransom

Noel has taught college Accounting and a host of other related topics and has a dual Master's Degree in Accounting/Finance. She is currently working on her Doctoral Degree.

This lesson describes what happens during the testing phase in the software development lifecycle (SDLC). The lesson also provides details on the various types of testing performed during this phase.

Testing Phase of SDLC

The testing phase of the software development lifecycle (SDLC) is where you focus on investigation and discovery. During the testing phase, developers find out whether their code and programming work according to customer requirements. And while it's not possible to solve all the failures you might find during the testing phase, it is possible to use the results from this phase to reduce the number of errors within the software program.

Before testing can begin, the project team develops a test plan. The test plan includes the types of testing you'll be using, resources for testing, how the software will be tested, who should be the testers during each phase, and test scripts, which are instructions each tester uses to test the software. Test scripts ensure consistency while testing.

There are several types of testing during the test phase, including quality assurance testing (QA), system integration testing (SIT), and user acceptance testing (UAT).

Types of Tests

During quality assurance (QA) testing, developers test the software's procedures and processes - the software must operate according to the customer's requirements.

System integration testing (SIT) checks how well the software interacts with other software applications. For example, when a software application is developed for a smartphone, the new application is tested with various types of cellular operating systems on different kinds of phones. Another common type of integration testing occurs when a website is developed and the customer wants to recreate the same website for mobile applications. A software developer will test the revised code for the mobile website to ensure that the website operates well on different kinds of mobile devices.

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