Classification Essay Example on Software Testing

Introduction

This assignment identifies ten different types of software testing techniques:

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Black box testing

White box testing

Unit testing

Incremental integration testing

Integration testing

Functional testing

System testing

End-to-end testing

Sanity testing

Regression testing

Documentation

Black Box Testing

This kind of software testing technique is also known as behavioral testing and in which the internal structure of the particular object getting tested is unknown to the test initiator. The system tends to find errors under different categories including missing functions, errors found in the interface, errors in the data structure and performance errors. Some of the techniques used by black box include equivalence partitioning, analysis of boundary value and effect graphing.

White-Box Testing

This testing technique is also known as a transparent box or code-based testing. Under this method, the internal structure of the object getting tested is known to the test initiator. The tester is free to choose whatever paths through the codes in order to come up with appropriate outputs. In this case, programming knowledge is vital since this process tests beyond the interface of the particular user into the core of a system. It is applicable in the unit testing, integrating testing and system testing atmospheres.

Unit Testing

Under this software testing technique, all the individual components of a particular software are tested. The main reason for the testing process is to validate that all the parts perform as were designed. A unit has a few inputs if not a single input and one output. It happens to be the initial level of testing performed just before integration testing. Software developers always take the credit for performing the tests. They have to construct the unit test plans, the test scripts and the test itself.

Incremental Integration Testing

It is performed after unit testing. The process involves verification of the interfaces and interaction with the existing modules. Under this technique, the developer would integrate modules of the design by using drivers that uncover the existing defects. Some of the available methodologies used in this technique include top-down integration, bottom-up integration, and functional incremental integration.

Integration Testing

This technique applies the use of integrated modules to verify the existing combined functionalities occurring after the integration process. The available modules include code modules, individual applications among many others. The testing method applied is relevant to the client or server and the distributed systems.

Functional Testing

It is one of the types of software testing in which systems are tested against their functional specifications. In this case, features get fed inputs to test them using the particular outputs they produce. This testing process is concerned with how the procedure of processing occurs. The steps involved in the testing technique includes identification of functions expected to be performed by the software, creation of input data according to the specifications of the functions, determining the outputs and executing the test case.

System Testing

Here, the entire system gets tested in accordance with the requirements.

End-to-End Testing

The technique involves testing of a unique application in a situation mimicking the real world situation like interactions with a database.

Sanity Testing

The test is performed just to confirm if a new version of a software performs well enough to accept it in major testing platforms. If such a system is vulnerable to crushing, then it is unsuitable and unstable for further testing.

Regression Testing

It is the testing done as a batch in order to modify any functionality. It is quite exhausting to cover all the systems in this kind of testing.

Calculator Test Cases

Some the possible tests to be operated in calculators include:

Basic operational tests

Functionality test cases

Conversion function tests

Financial calculator test

Advanced tests