Paper presented at Emergent Interaction Complexity, Dynamics, and Enaction in HCI. A CHI 2021 Workshop held online, 15th May, 2021 https://www.alandix.com/academic/papers/QQ-Emergent2021/ This paper is about the uniquity and importance of qualitative reasoning about quantitative phenomena. From A–B testing and recommender systems to Covid modelling and climate change, numbers and data drive so much of both the work we do within HCI itself and the applications we work on. Sometimes this requires precise calculations, but often decisions or explanations are more qualitative taking into account general tendencies of numeric systems. This is important for our work within HCI when dealing with quantitative data including dynamic systems, and also as we create tools for those teaching, presenting or working with numeric phenomena.

1. Alan Dix
http://alandix.com/papers/QQ-Emergent2021/
@alanjohndix @CompFoundry
Qualitative–Quantitative
Reasoning
understanding and managing the
behaviour of numeric phenomena

4. arithmetic mathematics
?

5. the qualitative understanding
of quantitative phenomena

6. climate change
Brexit
critical for understanding …
in short ….
being a C21 citizen
covid

7. HCI?

8. HCI for
qualitative quantitative reasoning
in HCI
visualisation
tools for
quick and dirty
calculation

9. Fitts Law
in practice
HCI for
qualitative quantitative reasoning
in HCI
visualisation
tools for
quick and dirty
calculation
CSCW
critical mass

10. this workshop?
Fitts Law
as cybernetics

11. Alan Dix
http://alandix.com/papers/QQ-Emergent2021/
@alanjohndix @CompFoundry
Qualitative–Quantitative
Reasoning
understanding and managing the
behaviour of numeric phenomena