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Skills for Testers: What Are Testers Made Of?

On March 13, 2013, in News, Newsletter, by Association for Software Testing
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By: Phil Kirkham

Definition of SKILL 

  • the ability to use one’s knowledge effectively and readily in execution or performance
  • dexterity or coordination especially in the execution of learned physical tasks
  • a learned power of doing something competently: a developed aptitude or ability

 
Now, armed with a definition, how can this be used to define skills that a tester should have? Is it possible to come up with a list of skills?

At a recent GR Testers Meetup this was the main topic of the evening. There were some people new to testing at the meeting so it was interesting to ask them what they thought the skills were.

One of the first things to be brought up was “attention to detail” and this does seem to be a common one. So we drilled down into this – what exactly does this mean? Is it a skill or a trait? Can you work on improving your attention to detail? Does it really mean that you have good observational skills or is it shorthand for “will do the same repetitive tasks again and again?”

The next skill we discussed was coding. Coding is one of the hot topics at the moment. There are many posts out there claiming that if testers cannot code they are going to go the way of the Dodo. So we drilled down into that. What does coding skill mean? Is it limited to one language or many? If you’re a tester in a web dev shop does coding skill mean you need to know Ruby, Javascript, CSS, HTML, jQuery? One of the attendees at GR Testers gave an example of a tester looking at code and finding an off by one error – but do we stop there, should they have the skill to understand and debug lambda functions? Is “coding skills” shorthand for “can write Selenium tests without having to ask SQA StackExchange for help?”

Do coding skills stop at coding? What about knowing algorithms so you can know about the performance implications of using linked lists versus hash tables versus binary trees? A tester might have the technical chops to test for XSS and SQL injection but what about having the creative thinking skills to think of social attacks?

Instead of focusing on specific skills, what about more general skills? Ilari Henrick Aegerter of Ebay recently posted about the skills a world class tester should have which included observational skills, willingness to learn, investigative curiosity and humour – has anyone ever seen a tester job posting with “humor” as a desired skill? Ilari isn’t the first one to put it on a list though, doing some research for this article I pulled out some of my old testing books and there in Systematic Software Testing was a list of skills – with humor included.

What Ilari’s list shows – as did the GR Testers discussion – is that the range of skills that a great tester should have (and be working on) is wide ranging. Some of them – e.g. critical thinking – are harder to teach and measure, is this a possible reason for focusing on technical skills?

Quick learner, thinking skills, soft skills – aren’t these “classic” tester skills more important than being able to code in the language de jour?

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