There are various types of software testing that are performed at different stages of the software development lifecycle. Here are some common types of testing:
Unit Testing: This testing focuses on verifying the smallest testable units of the software, typically individual functions or methods. It aims to ensure that each unit functions correctly in isolation.
Integration Testing: Integration testing verifies the interaction between different modules or components of a system. It tests the interfaces and interactions between these components to identify any issues that may arise when they are integrated.
System Testing: System testing is conducted on a complete, integrated system to evaluate its compliance with specified requirements. It tests the system as a whole to ensure that all components work together as intended.
Acceptance Testing: Acceptance testing is performed to determine whether a system meets the acceptance criteria and satisfies the end-user or customer requirements. It is usually carried out by the stakeholders or end-users to validate the system's functionality and usability.
Regression Testing: Regression testing is conducted after making changes or enhancements to the software. It aims to ensure that the modifications have not introduced new defects and that the existing functionality has not been adversely affected.
Performance Testing: Performance testing assesses the system's performance and responsiveness under different conditions, such as varying workload, data volume, or user concurrency. It helps identify bottlenecks, measure response times, and evaluate system scalability.
Security Testing: Security testing is performed to identify vulnerabilities or weaknesses in the system's security measures. It involves testing for potential threats, unauthorized access, data breaches, and ensuring compliance with security standards.
Usability Testing: Usability testing evaluates how user-friendly and intuitive the software is. It focuses on assessing the system's ease of use, navigation, and overall user experience.
Load Testing: Load testing is conducted to determine how well the system performs under expected or peak loads. It involves subjecting the system to high volumes of data or concurrent users to evaluate its response time and scalability.
Exploratory Testing: Exploratory testing is a dynamic, ad-hoc testing approach where testers explore the software without predefined test cases. They aim to uncover defects or unexpected behaviors by interacting with the software in real-time.
These are just a few examples of the many types of software testing available. The selection of testing types and techniques depends on factors such as project requirements, risks, budget, and time constraints.
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