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System testing is important for developers who aim to increase product quality. It checks a positive experience for future users. In a system level testing, testers must understand the process to identify areas for improvement and provide valuable feedback to companies.

In this article, we'll explore what is system testing, what it checks in a program’s code or types, and the advantages of system testing.

What Is System Testing?

System testing is a software development process that assesses the system level testing that can be performed before the integration testing. This process usually consists of multiple tests to examine how the software performs on a hardware system. Dedicated testers often carry out these tests in an isolated environment.

Purpose of System Testing

The primary purpose of system testing is to verify that a complete and fully integrated software application meets specified requirements. System-level testing guarantees that the software is functional and ready for real-world use. So, here are some other reasons why developers must conduct system testing in their STLC:

1. Validation of Requirements: Confirms that the software aligns with client and business needs.
2. End-to-End Testing: Assesses the system's behavior, including interactions between components.
3. Bug Detection: Identifies defects and inconsistencies before deployment.
4. Performance Evaluation: Tests responsiveness or load handling and reliability under different conditions.
5. Security Testing: Checks the system to verify it is protected against vulnerabilities and unauthorized access.
6. User Readiness: Prepares the application for user acceptance testing (UAT) by validating functionality and performance.
7. Compliance Check: Verifies adherence to industry standards and regulations.