As I was just browsing trying to find something about Software Testing, I found this very interesting blog entry of Debasis Pradhan called "How To Test A Pen?".
Such a simple thing and yet she's got about 25 test ideas for it:
1. See if the different components (the barrel, cap, unscrewable head, refill, spring if any etc) of the pen are fitting perfectly. [Installability Testing!]
2. Test the dimension of the pen. Its shape and size should be ergonomically designed so as to result in a comfortable writing experience.
3. Test by writing on a piece of paper. See if you can write smoothly. It should not be writing and stopping with breaks! [Usability Testing!]
4. Test the width of the line drawn by the pen to test the specified millimeter range [FYI: Ballpoint Pens come with different millimeter specifications like - a "point five millimeter" (0.5 mm) pen has a ball that will produce a line that is 0.5-mm wide, and a "point seven millimeter" pen (0.7 mm) has a ball that will produce a 0.7-mm line. Ballpoints even come as tiny as "point one millimeter" wide ("ultra fine")] [Validation Testing!]
5. Test the writing capacity (the amount of writing that is possible from a single refill) of the pen. [Capability/Reliability Testing!]
6. Test if you can carry the pen in your shirt pocket using its cap. The cap extension should be firm enough to grip your pocket! [Robustness Testing!]
7. Test by writing on different types of surfaces like: coarse paper, hard board wrapper, packaging material, glass, leather, cotton, wood, plastic, metals like aluminium or iron, polythene sheet etc. [Compatibility Testing!]
8. Write something on a paper and keep the paper for a reasonable duration of time. The written letters should not fade away over time. Also test by applying water on the writing/drawing made by the pen. See if the ink is water-proof!
9. Test if the ink leaks from the refill under normal circumstances.
10. Test if the ball of the refill head fits into the socket with just enough space to move freely.
Read the rest here. :)
I can't believe Testing can be so mind-boggling. :D
How To Test A Pen By Debasis Pradhan.
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2 comments:
Hi Jeigh,
Great to see that you liked my post on "How to test a Pen". I appreciate your link back to my full post. Actually it was part of a "How to test a XYZ" post series. In case, you are intrigued, you might read the rest posts of the series on my blog where I have tried to test things like Water Bottle, Mosquito Repellent Machines, Coffee Vending Machines, Microwave Oven and many other exciting stuffs. There are many more posts on my blog that would help you realize that Testing is indeed interesting and mind boggling. Welcome to the World of Testing :)
However, I noticed you mentioning "Such a simple thing and yet she's got about 25 test ideas for it." I just wanted to clarify that Debasis is a He, not a "she". You could confirm it from his profile page here. :)
Happy Testing...
-Debasis
Opps!
Sorry! My bad! :-S
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