“…Some aided AAC systems in particular are based on theoretical assumptions that concern the relationship between social activities, communication goals, and content (e.g., Higginbotham, Wilkins, Lesher, & Moulton, 1999;Todman, Rankin, & File, 1999;Todman & Alm, 2003). In the AAC literature, there appears to be an increasing interest in the relationship between interaction, conversational content, and development (e.g., Grove & Tucker, 2003;Mu¨ller & Soto, 2002;Smith, 2003;Soto & Seligman-Wine, 2003;Tavares & Peixoto, 2003;Waller & O'Mara, 2003).…”