PizzaBlock: Designing Artefacts and Roleplay to Understand Decentralised Identity Management Systems

Jonathan Rankin, Chris Elsden, Ian Sibbald, Alan Stevenson, John Vines, Chris Speed

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)


This pictorial describes in detail the design, and multiple iterations, of PizzaBlock - a role-playing game and design workshop to introduce non-technical participants to decentralised identity management systems. We have so far played this game with six different audiences, with over one hundred participants - iterating the design of the artefacts and gameplay each time. In this pictorial, we reflect on this RtD project to unpack: a) How we designed artefacts and roleplay to explore decentralised technologies and networks; b) How we communicated the key challenges and parameters of a complex system, through the production of a playable, interactive, analogue representation of that technology; c) How we struck a balance between playful tangible gameplay and high-fidelity technical analogy; and d) How approaches like PizzaBlock invite engagement with complex infrastructures and can support more participatory approaches to their design.
Original languageEnglish
Title of host publicationDIS '20
Subtitle of host publicationProceedings of the 2020 ACM Designing Interactive Systems Conference
Place of PublicationNew York
Number of pages14
ISBN (Print)9781450369749
Publication statusPublished - 3 Jul 2020
EventDIS2020: Designing Interactive Systems 2020: More than Human Centred Design - Eindhoven, Netherlands
Duration: 6 Jul 202010 Jul 2020


ConferenceDIS2020: Designing Interactive Systems 2020
Abbreviated titleDIS
Internet address


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