Thinking, Fast and Slow – My Takeaways

I have learnt many new things from the brilliant book by Daniel Kahneman, though I’ve found it hard to read. This post is to sum up my key takeaways.

 

There are two ways how we think. Decisions made can be based on the fast, automatic thought process (System 1) or on slow, more rational and logical thinking (System 2).
There are benefits of both systems, the problem is when we use System 1 where System 2 would be more appropriate to be used.

This is where we arrive to biases.

Continue reading Thinking, Fast and Slow – My Takeaways

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What can testers learn from economics? Opportunity Cost

In the microeconomics books you can meet the term: opportunity cost or alternative cost.

When me make a decision, we discard the the alternatives. With the opportunity cost we can give a weight of the lost possibilities, in other words the benefit we would have gotten if we had chosen to do something else, the roads not taken. It can happen that we don’t even consider in other options other than what we are doing, because we are busy concentrating on the obvious.

Tl;dr: every opportunity has a cost.

Continue reading What can testers learn from economics? Opportunity Cost

What can testers learn from psychology? Inattentional Blindness

Actually, there is a lot to learn from sciences, that can help testers to be better in their job. I’m focusing on inattentional blindness here.

By definition inattentional blidness is the failure to notice a fully-visible, but unexpected object because attention was engaged on another task, event, or object.

How many times have you been browsing through the software you’re testing and missed an obvious bug? How many times have you felt that you should have noticed the issue that was reported by someone else?

Continue reading What can testers learn from psychology? Inattentional Blindness