welcome to XRM blog

Keep in touch with latest CRM/ERP articles

To remain competitive your organisation must be efficient across the business process spectrum. To do so you need to take sound decisions based on a balance between the cost and risk. To do so you will be heavily dependent on your content management in itself needs...

image
Blog

‘Black Box Testing’ method

By Himanshu on 8/30/2022

Earlier I had written about Software Testing Life Cycle to improve the quality of the product and also automated testing tool, today I will share my thoughts related ‘Testing Methodology’ which I experienced while I performed the tests. There are primarily two testing methodology to test software today, I will discuss about the ‘Black Box Testing’ method. 

Text Box: #666464 Box TestingBasically in this method software/application is analysed/tested by a tester without being aware of its implementation/design/structure while the test can be functional/non-functional, usually functional is preferred.

                                                                     

 

 

 

           
    Cube: Executable Program
      Right Arrow: Output
  Right Arrow: Input
 
 

 

 

 

 

 

Text Box: Tester unaware of implementation/design/structure while the test                                                     

 

 

 

 

 

This process is termed as ‘black Box’ because, in the judgement of the Quality assurance tester, the internal working is hidden inside which tester doesn't know.

The method of attempts to discover errors in sets are following:

  • Behavior/performance errors

  • Interface errors

  • Incorrect or missing functions

  • Initialization/termination errors

  • Errors in data structures/external database access 

We can take an example of a tester, without any information of the design/structure of a website, begins to test the website on browser; providing random different types of inputs and many clicks, keystrokes and validating the outputs compared to the expected outcome. 

Following are some techniques are used for designing black box tests.

Equivalence partitioning- It involves dividing input values into valid & invalid partitions and go for the representative values from each partition as test data.

Boundary Value Analysis- It involves determination of boundaries for input values & selecting values that are at the boundaries and just inside or outside of the boundaries as test data.

Cause Effect Graphing- It involves identifying the cases (input conditions) and effects (output conditions), producing a Cause-Effect Graph, and generating test cases subsequently.  

Testing Tools
‘Black Box Testing’ method
Black Box Testing
METHODOLOGIES of Software Testing
Author
Blog Calendar
Blog Calendar List
2022 Dec  20  3
2022 Nov  209  2
2022 Sep  11  1
2022 Aug  46  4
2022 Jun  7  2
2022 May  3  2
2022 Apr  4  2
2022 Mar  1  1
2022 Feb  2  1
2022 Jan  1  1
2021 Dec  3  1
2021 Nov  2  1
2021 Oct  1  1
2021 Sep  10  1
2021 Aug  35  5
2021 Jul  34  4
2021 Jun  521  5
2021 May  25  3
2021 Apr  917  3
2021 Mar  89  5
2021 Feb  1037  7
2021 Jan  1147  9
2020 Dec  284  7
2020 Sep  61  3
2020 Aug  388  3
2020 Jul  90  1
2020 Jun  55  3
2020 Apr  38  3
2020 Mar  11  2
2020 Feb  26  5
2020 Jan  33  7
2019 Dec  17  4
2019 Nov  12  1
2019 Jan  23  2
2018 Dec  39  4
2018 Nov  68  3
2018 Oct  18  3
2018 Sep  833  11
2018 Aug  6  2
2018 Jun  11  1
2018 Jan  68  2
2017 Sep  576  5
2017 Aug  17  1
2017 Jul  17  2
2017 Jun  59  2
2017 May  21  1
2017 Apr  35  2
2017 Mar  120  4
2017 Feb  603  4
2016 Dec  192  3
2016 Nov  551  8
2016 Oct  278  10
2016 Sep  459  6
2016 Aug  39  1
2016 Jun  1829  6
2016 May  108  3
2016 Jan  71  2
2015 Dec  405  6
2015 Nov  4  1
2015 Oct  13  1
2015 Sep  1417  6
2015 Aug  14  1
2015 Jul  127  2
2015 Jun  10  1
2015 May  20  1
2015 Apr  30  3
2015 Mar  80  3
2015 Jan  5316  4
2014 Dec  17  1
2014 Nov  2252  4
2014 Oct  67  1
2014 Sep  106  2
2014 Aug  5125  1
2014 Jul  48  2
2014 Apr  2518  12
2014 Mar  282  17
2014 Feb  218  6
2014 Jan  1510  16
2013 Dec  21  2
2013 Nov  684  2
2013 Oct  256  3
2013 Sep  11  1
2013 Aug  40  3
2013 Jul  213  1
2013 Apr  56  6
2013 Mar  2145  10
2013 Feb  123  3
2013 Jan  288  2
2012 Nov  54  2
2012 Oct  490  10
Tag Cloud
Interested in our services? Still not sure about project details? get a quote