User Experience Design for E-Voting...User Experience Design for E-Voting How mental models align...

User Experience Design for E-VotingHow mental models align with security mechanisms

E-Vote-ID 20192019 October 2

Marie-Laure Zollinger

Joint work with Verena Distler, Peter B. Rønne, Peter Y.A. Ryan, Carine Lallemand, Vincent Koenig

Marie-Laure Zollinger E-Vote-ID 2019 User Experience Design for E-Voting

Outline

1. Motivation

2. Design

3. Results

4. Future Work

2


Motivation

3

–in Selene: Voting with Transparent Verifiability and Coercion-Mitigation (Peter Y.A. Ryan, Peter B. Rønne, Vincenzo Iovino)

“We take a different approach and revisit an old idea: to provide each voter with a private tracking number. […] This is appealing in that it

provides voters with a very simple, intuitive way to verify their vote, in the clear.”


Design of a user interface

4

System Image Perception


Selene

5

67890

Enc(vote)Vote Tally

12345

Verify


A User Centred Approach

6


Testing with paper

7


Mobile Application

8


–Donald Norman

“Mental models are people’s view of the world, of themselves, of their own capabilities, and of the tasks that they are asked to perform, or

topics they are asked to learn.”

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User Study

10

Test Questionnaire Interview

Security, visible yet unseen? —CHI Proceedings 2019


Mental Models

PrivacyVerifiability

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Secrecy

Coercion

Trust

Hacking

Approachability

Observer


What have we learned?

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• People care about Privacy and Coercion

• Verification is confusing

• Trust important for security perception

• Accessibility of knowledge

Impact on Voting Research

• 1 hour to understand

• Incomplete experience

Limitations

• 100% of effectiveness

• A lack of understanding

• Security unseen

Impact of Design

Thanks for your attention!

Future Work

Marie-Laure [email protected]

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User Experience Design for E-Voting...User Experience Design for E-Voting How mental models align...

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