“…Here research seeks to identify methods by which ideas can be generated, as in the mixing ideas approach found in (Guha et al, 2004) or to explore the idea generation process (Mazzone, Read, & Beale, 2008b) or to consider how PD can be used with specific user groups or specific design challenges. User groups that have been shown to be able to participate in design activities include very young children (Marco, Cerezo, Baldasarri, Mazzone, & Read, 2009) as well as teenagers (Mazzone, Read, & Beale, 2008a). Products for which participatory design has been shown to work have primarily been functional products including web sites (Read et al, 2002) and digital libraries (Theng et al, 2000).…”