“…KnowCat has been tested for twelve years in several research studies with student communities at several universities. These research studies have corroborated the KnowCat design hypotheses and the details of these studies and their results are a great contribution of this research work (Alamán & Cobos, 1999;Cobos & Alamán, 2002;Cobos, 2003;Cobos & Pifarré, 2008;Diez & Cobos, 2007;Gómez, Gutiérrez, Cobos & Alaman, 2001;Pifarré & Cobos, 2010). The system was extended with: i) awareness services, which provide users useful information about how they are interacting with the system and supports users to be aware of their collaborative interactions with the system (Cobos, Claros & Moreno-Llorena, 2009) and ii) a motivation booster service, which provide users feedback information about its work progress in KnowCat and supports to maintain user motivation to interact with the system (Echeverria & Cobos, 2010).…”