Introduction
Software testing plays an important role in ensuring the quality and reliability of software applications. It involves evaluating a system or a component to identify any defects, errors or deviations from the expected behavior. Testing ensures that the software or system is reliable, functional, secure meets the needs of its users. Testing is conducted at multiple levels throughout the software development lifecycle to ensure the quality and reliability of a product, These levels of testing can be categorized into
Unit Testing is to ensure that each individual unit or component performs as expected.
Integration Testing verifies the interactions and interfaces between integrated components or units of code.
System Testing evaluates the behavior of the entire system as a whole. It tests the system against functional and non-functional requirements to ensure that it meets specified criteria.
Acceptance testing verifies whether the system meets business requirements and is acceptable for delivery to end-users.
Types of Manual Testing
- White Box Testing
- Black Box Testing
- Grey Box Testing
White Box Testing
White box testing is a type of testing technique that examines the internal structure, code and logic of an application. In this Approach, various techniques are used such as control flow testing, data flow testing, and branch coverage analysis, to systematically explore and test different aspects of the code. White box testing is typically performed by developers who have knowledge of programming languages and software development principles.
In this Approach,
- Access to Source Code
- Validation of Internal Logic
Black Box Testing
Black box testing is often performed by testers who may not have access to the internal codebase or programming knowledge. It focuses on validating the software’s functionality from an end-user perspective, ensuring that it meets the specified requirements and delivers the intended value to users.
In this Approach, there will be
- Input-Output Analysis
- Focus on User Perspective
Grey Box Testing
Grey box testing combines elements of both white box and black box testing. In this, the tester has partial knowledge of the internal workings and code structure of the application being tested, allowing them to design test cases based on the system’s architecture and code structure while still focusing on the system’s external behavior and functionality.
In this Approach, there will be
- Partial Access to Internals
Conclusion
Testing is an indispensable aspect of the software development lifecycle, essential for ensuring the quality, reliability, and functionality of software products. It helps detect and rectify defects early in the development process and also instills confidence in the software’s performance and resilience. Testing is not merely a phase within software development; it is a continuous and iterative process aimed at delivering high-quality software that meets the evolving needs of users and stakeholders
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