P. Turner, and S. Turner. Proceedings of the Fifth European Conference on Computer Supported Cooperative Work, page 281-295. (1997)Setting: - Support of cooperative engineering desing - Implementing a virtual form for an real-life technical paper notebook. - Survey: real-life notebook is used for formal and informal information. - DUCK Application: virtual notebook who's pages can be made visibile to other participants. Problem: 1) Is virtual notebook better to store and manage information? 2) Does using the virtual notebook make the individual more productive? 3) Does using the virtual notebook make the group more productive? Methodical approach: Evaluation with people using the virtual notebook in a pilot study. Both a semi-structured interview and an administrated questionnaire at the start of the pilot phase. After one month, after three months, and after six months. Results: - Users had acceptance problems (as with virtually any CSCW system) - Users expressed the need for a closer integration of the tools in existing applications. Result and discussion of the evaluation are quite weak.