System testing as a service validates the entire program product and the whole system should work as it was declared in the requirements. Software testers from top testing companies perform system testing in the test environment to reduce and minimize risks in the product.

The test environment should meet the actual environment where the product or the program will be used. On this level, testing objectives are specification of requirements, use cases, business process or system requirements. Quite often, documentation for the project is insufficient; and then the dedicated testing team needs to analyze what requirements were undocumented or incomplete.

System Testing Basis

• System and Software Requirement Specification.
• Functional Specification.
• Use Cases.
• Risk Analysis Reports.

When performing system testing, software testers should consider and implement in practice the number of testing types, which are enumerated below.

Testing Types

• Graphic User Interface Testing.
• Usability Testing.
• Performance Testing.
• Compatibility Testing.
• Exception Handling.
• Load Testing.
• Volume Testing.
• Stress Testing.
• Security Testing.
• Scalability Testing.
• Sanity Testing.
• Smoke Testing.
• Exploratory Testing.
• Ad hoc Testing.
• Regression Testing.
• Installation Testing.
• Recovery Testing.