Anacleto, RicardoFigueiredo, LinoLuz, NunoAlmeida, AnaNovais, Paulo2013-04-292013-04-292011978-3-642-19936-3978-3-642-19937-01867-5662http://hdl.handle.net/10400.22/1468In this paper we present a mobile recommendation and planning system, named PSiS Mobile. It is designed to provide effective support during a tourist visit through context-aware information and recommendations about points of interest, exploiting tourist preferences and context. Designing a tool like this brings several challenges that must be addressed. We discuss how these challenges have been overcame, present the overall system architecture, since this mobile application extends the PSiS project website, and the mobile application architecture.engMobile recommendation systemSight information providerContext-awareClient-server applicationbook part2013-04-2110.1007/978-3-642-19937-0_17