Bidarra, RafaelBunnik, Andre vanBronsvoort, Willem F.Marcos, Adérito and Mendonça, Ana and Leitão, Miguel and Costa, António and Jorge, Joaquim2021-10-142021-10-142021978-3-03868-163-2https://doi.org/10.2312/pt.20031422https://diglib.eg.org:443/handle/10.2312/pt20031422Providing advanced 3D interactive facilities to users of a client-server collaborative modeling system presents a great challenge when thin clients are involved, mainly due to their lack of both a proper CAD model and the adequate modeling and solving functionality. This paper presents a new approach that provides a convenient representation of feature model data suitable for direct manipulation of feature models at such clients. It combines all advantages of a thin client approach with the sort of 3D direct manipulation facilities usually only found in powerful standalone CAD systems.feature modelinggraphical interactionwebbased modelingcollaborative modeling10.2312/pt.2003142227-33