The complexity of services provided through theWeb is con-tinuously increasing and issues introduced by both heteroge-neous client devices and Web content personalization are be-coming a major challenge for the Web. Tailoring Web andmultimedia resources tomeet the user and client requirementsopens twomain novel issues in the research area of content de-livery. The content adaptation operations may be computa-tionally expensive, requiring high efficiency and scalability intheWeb architectures.Moreover, personalization services in-troduce security and consistency issues for user profile infor-mation management. In this paper, we propose a novel dis-tributed architecture, with four variants, for the efficient de-livery of personalized service where the nodes are organizedin two levels.We discuss how the architectural choices are af-fected by security and consistency constraints as well as by theaccess to privileged information of the content provider.More-over we discuss performance trade-offs of the various choices.
Architectures for scalable and flexible Web personalization services / Canali, Claudia; Casolari, Sara; Lancellotti, Riccardo. - STAMPA. - 2005:(2005), pp. 50-57. (Intervento presentato al convegno 1st International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications, AAA-IDEA 2005 tenutosi a Orlando, FL, usa nel Giugno 2005) [10.1109/AAA-IDEA.2005.2].