We present a review of research related to the usability testing of mobile applications including

El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription Abstract. SKC is a prototype system for knowledge management in the Web by means of semantic information without supervision and tries to select the knowledge contained in the system by paying attention to its use. This paper explains user activity analysis in order to find out their interest for knowledge elements in the system, and the application of this interest for users classification and knowledge identification for their interest, inside and outside SKC. As a result a model for user interest based on interaction is obtained. Modeling of User

amount of information to having so much that it is too extensive and difficult to manage, and less useful than could be hoped for. From different fields of investigation (Knowledge Management, Information and Data Mining, Semantic Web, and so on) solutions for this problem are being looked for, but the solutions found are not applicable to all the cases.An interesting idea for finding a solution to this problem within the Internet context is to use network characteristics to solve the problems that it causes. As for the more limited case of the network knowledge management systems, a solution could be to use the characteristics of the elements involved in the knowledge management (user's community, knowledge, and network) and to take advantage of the residual power from the activity of people, services and other entities that interact with those systems. This is the approach which this paper focuses on.The technologies needed to prove this hypothesis could be not found in an only knowledge area, but they could be searched in the integration of ideas from many different research fields that coincide in the Semantic Web area. The five knowledge fields that are going to be considered in this paper are Knowledge Management, Human Computer Interaction (HCI), Computer Supported Cooperative Work (CSCW) [13], Information and Data Mining, and Semantic Web [4].KnowCat [1], that stands for Knowledge Catalyser, is an original system for knowledge management over the Web, which proposes a different

Semantic KnowCat (SKC) is a groupware system for knowledge management in the Web, by means of semantic information and users interaction without supervision. SKC tries to organise the knowledge contained in the system paying attention to its use. In order to resolve the lack of information about users activity on client side, typical of the Web client/server architecture, SKC has a Client Monitor in charge of taking data on users activity and dealing with the analysis of the user activity register. This analysis results in new information that makes knowledge classification easier, reducing the need for user explicit opinions.

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