types of test 8AB94831






Concept: Types of Test








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Concept: Types of Test















This guideline introduces the main dimensions of testing (beyond functional).






Relationships



Related Elements


Test


Test and Evaluate


Test and Evaluate


Test Results


Test Suite


Verify Test Approach


Verify Test Approach






Main Description



There is much more to testing computer software than simply evaluating the functions, interface, and response-time characteristics of a target-of-test. Additional tests must focus on characteristics and attributes, such as the target-of-test. integrity (resistance to failure) ability to be installed and executed on different platforms ability to handle many requests simultaneously To achieve this, many different types of tests are implemented and executed. Each test type has a specific objective and support technique. Each technique focuses on testing one or more characteristics or attributes of the target-of-test. The following lists the test types based on the most obvious quality dimensions (see Concept: Quality Dimensions) they address: Quality Dimension/ Quality Risk Type of Test Functionality Function test: Tests focused on validating the target-of-test functions as intended, providing the required services, methods, or use cases. This test is implemented and executed against different targets-of-test, including units, integrated units, applications, and systems. Security test: Tests focused on ensuring the target-of-test data (or systems) are accessible only to those actors for which they are intended. This test is implemented and executed on various targets-of-test. Volume test: Testing focused on verifying the target-of-test's ability to handle large amounts of data, either as input and output or resident within the database. Volume testing includes test strategies such as creating queries that would return the entire contents of the database, or that would have so many restrictions that no data is returned, or where the data entry has the maximum amount of data for each field. Usability See Concept: Usability Testing for additional information. Usability test: Tests that focus on:  human factors esthetics consistency in the user interface  online and context-sensitive help wizards and agents user documentation  training materials Reliability Integrity test: Tests that focus on assessing the target-of-test's robustness (resistance to failure), and technical compliance to language, syntax, and resource usage. This test is implemented and executed against different targets-of-test, including units and integrated units. Structure test: Tests that focus on assessing the target-of-test's adherence to its design and formation. Typically, this test is done for Web-enabled applications ensuring that all links are connected, appropriate content is displayed, and no content is orphaned. See Concept: Structure Testing for additional information. Stress test: A type of reliability test that focuses on evaluating how the system responds under abnormal conditions. Stresses on the system could include extreme workloads, insufficient memory, unavailable services and hardware, or limited shared resources. These tests are often performed to gain a better understanding of how and in what areas the system will break, so that contingency plans and upgrade maintenance can be planned and budgeted for well in advance. Performance See  Concept: Performance Testing for additional information Benchmark test: A type of performance test that compares the performance of a new or unknown target-of-test to a known reference-workload and system. Contention test: Tests focused on validating the target-of-test's ability to acceptably handle multiple actor demands on the same resource (data records, memory, and so on). Load test: A type of performance test used to validate and assess acceptability of the operational limits of a system under varying workloads while the system-under-test remains constant. In some variants, the workload remains constant and the configuration of the system-under-test is varied. Measurements are usually taken based on the workload throughput and in-line transaction response time. The variations in workload usually include emulation of average and peak workloads that occur within normal operational tolerances. Performance profile: A test in which the target-of-test's timing profile is monitored, including execution flow, data access, function and system calls to identify and address both performance bottlenecks and inefficient processes. Supportability Configuration test: Tests focused on ensuring the target-of-test functions as intended on different hardware and software configurations. This test might also be implemented as a system performance test. Installation test: Tests focused on ensuring the target-of-test installs as intended on different hardware and software configurations, and under different conditions (such as insufficient disk space or power interruptions). This test is implemented and executed against applications and systems.





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