System Testing in Software Engineering

What is System Testing?

System testing is a type of software testing that evaluates an entire system, or a set of integrated systems, to verify that it meets the specified requirements and works as expected. It typically involves testing the system’s functionality, performance, security, and compatibility with other systems.

The goal of system testing is to ensure that the system is fully integrated and meets the needs of the end-users. It is usually performed after unit and integration testing and before acceptance testing.

System Testing

Workflow of System Testing

Workflow of System Testing

The workflow of system testing typically includes the following steps:

  • Requirements analysis:

Understand the requirements and specifications of the system to be tested.

  • Test planning:

Create a test plan that outlines the objectives, scope, and approach of the testing process.

  • Test case development:

Develop test cases that cover all the functional and non-functional requirements of the system.

  • Test environment setup:

Configure and set up the test environment, including hardware, software, and data.

  • Test execution:

Run the test cases and record the results.

  • Test result analysis:

Analyze the test results to identify any defects or issues with the system.

  • Defect reporting and tracking:

Report any defects found during testing and track them until they are resolved.

  • Test closure:

Close the testing process and document the results.

Types of System Testing

Types of System Testing

There are several types of system testing, including:

  • Functional testing:

Tests the system’s compliance with its functional requirements.

  • Non-functional testing:

Tests the system’s compliance with non-functional requirements such as performance, security, and usability.

  • Performance testing:

Tests the system’s performance under various loads and conditions.

  • Stress testing:

Tests the system’s ability to handle extreme loads and conditions.

  • Security testing:

Tests the system’s security controls and vulnerabilities.

  • Compatibility testing:

Tests the system’s compatibility with different hardware, software, and operating systems.

  • Acceptance testing:

Tests the system’s compliance with the client’s or end-user’s acceptance criteria.

  • Regression testing:

Tests the system’s functionality after changes have been made to ensure that new changes have not introduced new bugs.

  • Usability testing:

Tests the system’s ease of use and user-friendliness.

  • Installation testing:

Tests the system’s installation process and any related issues.

Advantages of System Testing:

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