Software testing is a process of evaluating the functionality of a software application with the intention of determining whether the developed software meets the specified requirements or not and identifying defects to ensure that the product is defect-free in order to produce a quality product.
Software testing life Cycle(STLC):
The software testing lifecycle refers to a testing process that includes certain steps that must be performed in a defined order to ensure that the quality objectives are met. In this, we also take care about quality assurance which is the process of ensuring the quality of software products or services that an organization provides to customers. Quality assurance focuses on improving the software development process and making it efficient and effective by the quality standards defined for the software. In the STLC process, each activity is planned and carried out systematically. Each phase has different goals and services.
There are various phases in STLC:
- Requirements phase
- Planning Phase
- Analysis phase
- Design Phase
- Implementation Phase
- Execution Phase
- Conclusion Phase
- Closure Phase
Types of Testing:
There are many different types of software testing in which each has specific goals and specific strategies:
- Acceptance testing: In this we do verification that the overall system is working as expected.
- Integration testing: In this, the tests are performed by testing the integration of several modules. The interactions between these different modules run smoothly or are not monitored by the integration test. It is a type of testing in which individual software modules are logically integrated and tested as a group. This test is carried out to test whether individual modules in combination work as expected.
- Unit test: It is used to test small units of code in an isolated and deterministic way. The goal of the unit test is to separate each part of the program and test that each part is working properly. A function is a form of a unit.
- Functional testing: Checking functions that emulate business scenarios according to functional requirements. Black box tests are a common way of checking functions.
- Performance Testing: It is a testing in which we test the performance of the software under various workloads. Load testing, for example, is used to evaluate performance under real-life load conditions.
- Regression Testing: Regression testing test the performance of the entire application after a module or functionality has been changed or modified. It involves re-running functional and non-functional tests to ensure that previously approved software will still work after a change.
- Stress Testing: In this we test the strain that how much stress the system can withstand before it fails. It is considered a type of non-functional test.
- Usability testing: Validation of how well a customer can use a system or web application to get a task done.