Difference Between BLACK, GREY And WHITE Box Testing  

Difference Between BLACK, GREY And WHITE Box Testing  

Software testing is a technical examination that gives various stakeholders information about the product’s quality. It is a method for locating defects in software that has been created. It can reveal a lot about the construction as well as underlying problems. A tester can determine whether the program is finished, secure, and stable by comparing the software’s performance to the requirements and anticipated outcomes. 

After the software has been produced, testing can be carried out gradually, or it can be carried out using an “Agile” method in which programming and software testing are done simultaneously. There are three types of software testing- Black, white and grey box testing. 

Black Box testing

Black box testing has nothing to do with the inner workings or structure of the programs. The software tester needn’t know the system architecture or source code. Black box testing is not widely used. You cannot rely solely on black box testing to guarantee your application is stable and high-quality because its test cases are challenging to design. 

White-Box testing

Unlike black-box testing, penetration testers are allowed complete access to source code, architecture documents, and other information. White-box testing is the most time-consuming kind of penetration testing since its main difficulty is sorting through the vast quantity of data available to find potential weak spots. 

Grey Box testing

A grey box tester may have elevated privileges on a system and have a user’s access. Grey box testers typically have some understanding of the internals of a network, possibly including design and architecture documentation. Grey-box testing aims to offer a more targeted and effective evaluation of a network’s security than a black-box evaluation. 

Difference between black box, white box and grey box testing 

1  Has low granularity.  Has medium level granularity.  Has high level of granularity. 
2  Done by end-users, testers and developers.  Done by end-users, testers and developers.  Done by testers and developers. 
3  Internals are not required to be known.  Internals relevant to the testing are required to be known.  Internal code of application and database are required to be known. 
4  Likely to be less exhaustive than the other two.  Medium exhaustive among the three.  Most exhaustive among all three. 
5  Suited for functional or business testing.  Suited for functional or business domain testing deeply.  Used for all types of testing. 
6  Also called opaque-box testing, closed-box testing, input-output testing, data-driven testing, behavioural, or functional testing.  Also called translucent box testing.  Also called glass-box testing, clear-box testing, design-based testing, logic-based testing, structural testing, and code-based testing. 
7  Design techniques include- Decision table testing All-pairs testing Equivalence partitioning Error guessing   Design techniques include- Matrix testing Regression testing  Pattern testing Orthogonal Array Testing   Design techniques include- Control flow testing Data flow testing Branch testing  
8  Provides resilience and security against viral attacks.   Does not provide resilience and security against viral attacks.   Does not provide resilience and security against viral attacks.  


Hence, black, white and grey box testing are the most critical software testing categories used to ahere to software compliance with standards. Skillmine offers top-notch software testing services for businesses in need. Know more

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