Gerrit C. van der Veer, Dhaval Vyas. Non-formal Techniques for Early Assessment of Design Ideas for Services. In Achim Ebert, Gerrit C. van der Veer, Gitta Domik, Nahum D. Gershon, Inga Scheler, editors, Building Bridges: HCI, Visualization, and Non-formal Modeling - IFIP WG 13.7 Workshops on Human-Computer Interaction and Visualization: 7th HCIV@ECCE 2011, Rostock, Germany, August 23, 2011, and 8th HCIV@INTERACT 2011, Lisbon, Portugal, September 5, 2011, Revised Selected Papers. Volume 8345 of Lecture Notes in Computer Science, pages 135-149, Springer, 2011. [doi]
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