bdd - bias driven development
TRANSCRIPT
A bias is a thinking
pattern that leads to
systematic mistakes of
judgment
1. Too much information: we are overloaded by information, so we aggressively filter. Some of the what we leave out is actually useful and important
2. Not enough meaning: we imagine details that were filled in by our assumptions, and construct meaning and stories that aren't really there.
3. Need to act fast: quick decisions can be seriously flawed. Some of the quick reactions and decisions we jump to are unfair and counter-productive
4. What should we remember?: our memory reinforces errors. Some of the stuff we remember for later just makes all of the above systems more biased
Framing effect: people react to a particular choice in different ways depending on how it is presented
Choice-supportive bias: when you choose something, you tend to feel positive about it, even if that choice has flaws
Confirmation bias: seeking and prioritising information that confirms your existing beliefs
Well travelled road effect: travellers estimate the time taken to traverse routes differently depending on their familiarity with the route. Frequently travelled routes are assessed as taking a shorter time than unfamiliar routes
Overconfidence: some of us are too confident about our abilities, and this causes us to take greater risks in our daily lives
The amount of damages that you can cause with a wrong decision is proportional to the level of overconfidence with which you take it
Law of triviality (or bikeshedding): giving disproportionate weight to trivial issues
Narrative bias: refers to tendency to make sense of the world through stories
Bandwagon effect: believing or doing something because people around you believe or do it
Placebo effect: when simply believing that something will have a certain effect on you causes it to have that effect
Not inventedhere syndrome
IKEA effect: consumers place a disproportionately high value on products they partially created
Pro-innovation bias: when a proponent of an innovation tends to overvalue its usefulness and undervalue its limitations
Semmelweis effect is a metaphor for the tendency to reject new evidence or new knowledge because it contradicts established norms
Ostrich effect: the decision to ignore dangerous or negative information by “burying” one’s head in the sand, like an ostrich
Dunning-Kruger Effect: unskilled individuals overestimate their abilities and experts underestimate theirs
Availability heuristic: overestimate the importance of information that is easy to recall
Bias blind spot: we recognize the impact of biases on the judgement of others, while failing to see the impact of biases on our decisions
A non-repeatable process producing
few great successes and
many miserable failures
We got what we deserved for making software
development a craftsmanship instead of an
engineering discipline
We are engineers, not craftsmen or even worse artists
Those who cannot develop software,teach software development methodologies
Life is easier on giants' shoulders
It's a curious thing about software industry: not only we do not learn from our mistakes, we also don't learn from our successes
- Keith Braithwaite
Listen to listen, not to take a pause and think what you'll say next
Measure
Measure
Measure
Enlarge your professional toolbox
I said professional
=
… and yes, I am biased too
Newer does NOT always mean better
Dubito ergo Cogito