Weak signals
Early, imprecise hints of a change that is not yet evident but could come to have a large impact.
What problem it addresses
Explains why many changes take us by surprise even though they could have been sensed earlier.
An example
The same change, seen at two different moments.
The sooner a change is detected, the more time there is to respond, even if there is less certainty.
Why it happens
Big changes often start with small, odd cases.
At first they are ambiguous and easy to dismiss as noise.
If you wait for clear evidence, by the time it arrives there is little room left.
Applications in design
Use it like this
Collect odd cases you come across (news, products, behaviors) and review them as a team every so often.
Avoid
Presenting an anecdote as if it were already a trend.
Don’t fall for it
Do not dismiss something just because it is a minority today: note why it could grow.
1975
What the research says
Igor Ansoff proposed that strategic surprises are usually announced in advance by weak, imprecise information, and that it is better to start responding gradually instead of waiting for certainty (Ansoff, 1975).
Debated evidence. It is a strategic management framework, not an experimental result. Telling a weak signal from mere noise is still difficult.
Connections
Authors and works
- 1975
H. Igor Ansoff
Introduced the idea of detecting weak signals and responding to them gradually.
Sources
Original sources
- Ansoff, H. I. (1975). Managing strategic surprise by response to weak signals. California Management Review, 18(2), 21–33. View source: Ansoff, H. I. (1975)
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