KernDev

Why Software Testing Must Be Planned Before the First Feature Is Built

Testing should not be postponed until the development team says the application is finished. If a project has no agreed testing requirements, important problems may remain hidden until users encounter them. These can include incorrect calculations, broken integrations, permission errors, slow response times, and failures that appear only when several users access the system together.

KernDev includes development and testing in its software delivery process. Its approach uses iterative releases, continuous feedback, and automated testing through development pipelines. The purpose is to identify problems throughout the build rather than relying on a single final review.

What should the testing plan include?

• Functional testing: Does each feature behave according to the agreed requirements?

• Integration testing: Does information move correctly between connected systems?

• Security testing: Can users access only the information and functions they are permitted to use?

• Performance testing: Does the application remain responsive under expected workloads?

• User acceptance testing: Can intended users complete their actual tasks?

• Regression testing: Do new changes break features that previously worked?

Illustrative scenario: A booking platform calculates appointment availability using staff schedules. A feature may work correctly for one employee but fail when several employees have overlapping schedules or different time zones. Testing these conditions before launch can prevent scheduling errors that affect customers and staff.

KernDev's team includes developers and QA professionals who work within the project delivery process. Businesses evaluating agile quality assurance services should ask how defects are recorded, prioritized, retested, and approved before release.

A project should define acceptance conditions before development so both the client and engineering team know what successful completion means.