What Are The Disadvantages Of Black Box Testing

4.3 Testing Techniques

Software testing can be performed using different techniques. Some of them are as follows.

Black Box Testing

In Black Box testing technique the technical expertise is not required; the tester can work without any knowledge of interior functionality or code. The tester is unaware of the architecture and does not have access to the source code. It is also called as input output testing, as because when performing a black box testing, a tester will interact with the systems user interface by providing inputs and examining outputs without knowing how and where the inputs are worked upon. Black box testing can be done by different methods such as equivalence class partitioning and boundary value analysis.

Advantages of black

• It is difficult to find out hidden errors that may create problems as many paths will go untested.

• In white box testing, it is difficult to maintain testing because it requires code analyzers and debugging tools.

4.4 Different types of software Testing

There are different types of testing

4.4.1 Functional Testing

Functional testing is a type of black box testing that is based on specifications of the software that is to be tested. Any of the application can be tested by providing input and examining the result which confirms the functionality of the application. Functional Testing of the software is conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements.

Steps Description

I The writing of Test Scenarios and the execution of test cases.

II The creation of test data based on the specifications of the application.

III The output based on the test data and the specifications of the application.

IV The purpose of the functionality that the intended application is supposed to perform

V The actual and expected results are compared based on the executed test

There are also legal and contractual requirements for acceptance of the system.

4.4.6 Alpha Testing

Alpha testing is the type of user acceptance testing, which is performed to identify all possible errors before releasing product to everyday people. This testing focuses to simulate the real user by black box and white box testing techniques. Alpha testing is performed by the developer in a controlled environment. This testing is all about the documentation to check the check the spelling mistake, links etc.

4.4.7 Beta Testing

Beta testing is performed after Alpha testing has been performed successfully. It is performed by real users in real environment and can be considered as a form of external user acceptance testing. Beta testing reduces product failure risks and increased quality of the product. Beta testing is also known as pre release testing. In this phase the user will be testing the following