3. Listening to Data
Noise!
Irrelevant, meaningless, and
can distract or mislead from the
best course of action
Signals
Potentially meaningful and
can prompt actions that
lead to good outcomes
24. "Organizations haven't realized until recently,
the majority of their data sets have something
wrong with them. Using visualization allows
us to sometimes see potentially dangerous
errors and omissions.”
“Data visualization is worthwhile if for the data
cleaning capabilities alone."
999-Year-Old Patients
Ben Shneiderman Human Computer Interac4on Laboratory, University of Maryland