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User Interface Specification in Complex Web-based Information Spaces. Thomas Memmel 1 , Heiko Ziegler 2 , Richard Oed 2 , Harald Reiterer 1. INSPECTOR: Method and Tool for Visual UI Specification. Thomas Memmel 1 , Harald Reiterer 1.
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User Interface Specification in Complex Web-based Information Spaces Thomas Memmel1, Heiko Ziegler2, Richard Oed2, Harald Reiterer1 INSPECTOR: Method and Tool for Visual UI Specification Thomas Memmel1, Harald Reiterer1 1Human-Computer Interaction Lab, University of Konstanz, Germany 2Daimler AG, Group Research & Advanced Engineering GR/ESP, Ulm, Germany
How do we build interactive systems with high UI quality and usability in complex organizations? Usability-drivenquestion: Bridge thegaps Usability Expert: - Mustbridgethedisciplines - Needs toextendhisexpertise
Corporate UI Development Process • Current Situation • Media disruptions • Text-basedartifacts • Document-basedrequirementsmanagement • Difficulttotranslateinto UI • Intransparent • Ambiguous Client Client IT Supplier IT Supplier • Required Change • Usability strategicfactor • UE must not beoutsourced • Early prototyping • Rapid feedback • Corporate Design • Specification incl. Design
MAXpro (Daimler AG) • XML-based UI Prototyping & Specification tool • Motivation: • function as a vehicle for discussions • easy generation of alternate UI design solutions • different versions of the UI generated easy and quickly • early externalization of design vision (client) • up-front usability evaluation (client) • prevents costly late-cycle changes and helps to • become less dependent on a supplier
MAXpro: Lessons Learned • Formalization vs. Chance for Innovation • Rather inappropriate to propel creative processes • Actors cannot take part in participatory design without knowing the terminology • Applied no sooner than after the requirements analysis • Office stays the dominant tool in earlier phases • User and task modelling misses • Design rationale not incorporated, but dispersed in different media
A common denominator in UI Modelling Level of abstraction: Text to UI design Define a common denominator for interdisciplinary UI modelling (Bridge the gaps) Mayhew, Rosson & Caroll, Constantine Constantine, Ambler, Beck Holt, Ambler New Research
Interaction Model Task Model Vanderdonckt: CAMELEON Reference Framework User Model
Summary & Conclusion Model-driven and model-based approach for UI specification New research towards a common denominator for UI-related modelling Idea of interactive UI specifications First empirical studies prove: the idea to interconnect a thoughtful selection models with different levels of UI design very much contributes to UI specification processes in client organizations
Thank you very much Please do not hesitate to ask questions