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 2/3/2014

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
2021 Sep  3  2
2021 Aug  7  4
2021 Jul  12  4
2021 Jun  49  6
2021 May  12  2
2021 Apr  26  3
2021 Mar  30  5
2021 Feb  78  7
2021 Jan  137  9
2020 Dec  62  7
2020 Sep  38  3
2020 Aug  120  3
2020 Jul  68  1
2020 Jun  28  3
2020 Apr  16  3
2020 Mar  11  2
2020 Feb  23  5
2020 Jan  23  7
2019 Dec  15  4
2019 Nov  12  1
2019 Jan  33  3
2018 Dec  36  4
2018 Nov  66  3
2018 Oct  12  3
2018 Sep  462  11
2018 Aug  6  2
2018 Jun  11  1
2018 Jan  58  2
2017 Sep  565  5
2017 Aug  17  1
2017 Jul  17  2
2017 Jun  54  2
2017 May  21  1
2017 Apr  33  2
2017 Mar  120  4
2017 Feb  483  4
2016 Dec  185  3
2016 Nov  449  8
2016 Oct  256  10
2016 Sep  367  6
2016 Aug  39  1
2016 Jun  1797  6
2016 May  104  3
2016 Jan  71  2
2015 Dec  392  6
2015 Nov  4  1
2015 Oct  13  1
2015 Sep  1399  6
2015 Aug  13  1
2015 Jul  127  2
2015 Jun  10  1
2015 May  20  1
2015 Apr  28  3
2015 Mar  78  3
2015 Jan  5284  4
2014 Dec  17  1
2014 Nov  2231  4
2014 Oct  64  1
2014 Sep  106  2
2014 Aug  4877  1
2014 Jul  46  2
2014 Apr  2492  12
2014 Mar  295  19
2014 Feb  241  8
2014 Jan  1510  16
2013 Dec  21  2
2013 Nov  662  2
2013 Oct  252  3
2013 Sep  11  1
2013 Aug  38  3
2013 Jul  209  1
2013 Apr  50  6
2013 Mar  1962  10
2013 Feb  312  4
2013 Jan  273  2
2012 Nov  39  2
2012 Oct  464  10
Tag Cloud
Interested in our services? Still not sure about project details? get a quote