Interactional challenges of mobile and ubiquitous computing devices
Mobile and Ubiquitous Computing
Sandy Gould [email protected]
15th February 2021
Today
Finishwhatwecouldntlastweek on context.
Thinkmoreaboutthedesignof services to fit devices (e.g., shortlinks)
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Context awareness
Lets think about this ourselves
kahoot.it
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Input engineering Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Attendance
Access code: D86GN2RG
Interactional challenges of mobile and ubiquitous computing devices Sandy Gould, University of Birmingham 21st January 2019
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Short links
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Character sets and mode switching
Lowercase Numbers UPPERCASE
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Design decisions are constrained by the need to have large sets.
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Heres a short link from a popular service:
bit.ly/y7vB92e
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links of this kind are there?
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
https://dkrashen.github.io/combinatorics/images/partitions.png
How many possible links are there?
bit.ly/y7vB92e
123456789 10 abcdefghijklmnopqrstuvwxyz 26 ABCDEFGHIJKLMNOPQRSTUVWXYZ 26
62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62 62 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62 62 62 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e 62 62 62 62 62 62 62
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
How many possible links are there?
bit.ly/y7vB92e
62626262626262 = 3,521,614,606,208
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Experiment
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
Nine-character IDs (a-z)
lwkd.uk/S9T7R4B vs
Seven-character
Winner!
!
IDs (a-z, A-Z, 0-9)
lwkd.uk/yevyevyev
Notice anything about lwkd.uk?
Interactional challenges Sandy Gould, University of Birmingham 15th February 2021
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