Germán Leiva

Title: Ph.D. student
Advisor: Michel Beaudouin-Lafon
Website: /people/german-leiva
Related projects



The construction of software products and in particular their Graphical-User Interfaces are decoupled from the design process once the implementation starts. Techniques like paper or video prototyping are prefered over eager software implementation for their ability to be easily modifiable and disposable. This shows that current software tools are immature.

I want to combine my experience as a developer in the industry and as a programming teacher to unify this two divorced processes into the software itself, providing collaborative tools that will exhibit the same benefits that the lightweight prototyping techniques and in addition will be easily evolved without losing the trackability of the design process.

For more information about past projects check



Germán Leiva, Nolwenn Maudet, Wendy Mackay, and Michel Beaudouin-Lafon (2019).
Enact: Reducing Designer-Developer Breakdowns when Prototyping Custom Interactions.
ACM Transactions on Computer-Human Interaction 26, 3, Article 19 (June 2019), 48 pages.


German Leiva (2018).
Interactive Prototyping of Interactions : from Throwaway Prototypes to Takeaway Prototyping.
Ph.D. Dissertation. Université Paris Saclay (COmUE).
Germán Leiva and Michel Beaudouin-Lafon (2018).
Montage: A Video Prototyping System to Reduce Re-Shooting and Increase Re-Usability.
In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2018) (Berlin, Germany). 675–682.
Germán Leiva, Nolwenn Maudet, and Michel Beaudouin-Lafon (2018).
Towards Collaborative Prototyping Tools for Interaction Design.
In Workshop: Digital Tools in Collaborative Creative Work. Oslo, Norway.
In conjunction with NordiCHI 2018.


Nolwenn Maudet, Germán Leiva, Michel Beaudouin-Lafon, and Wendy E. Mackay (2017).
Design Breakdowns: Designer-Developer Gaps in Representing and Interpreting Interactive Systems.
In CSCW 2017 - Proceeding of the ACM Conference on Computer-Supported Cooperative Work and Social Computing (Portland, USA). ACM, 630–641.


Carla F Griggio, Nam Giang, Germán Leiva, and Wendy Mackay (2016).
The UIST Video Browser: Creating Shareable Playlists of Video Previews.
In UIST 2016 - 29th ACM Symposium on User Interface Software and Technology (Tokyo, Japan). ACM, 59–60.