| dc.description.abstract | In a scenario of massive adoption of powerfull and highly connected mobile devices, cloud computing and improved wi-fi networks, is rapidly increasing the number of distributed application, in several areas. These systems need to handle new kind of problems, deriving from the mobile and/or ubiquitous nature of their computational nodes. Also, more and more mobile devices applications need to check context and historical information to adapt better to situations and provide minimum distraction and great usability to end user. Besides, the clientserver model shows limitations to handle the new systems requirements. This work presents the U-Deal, a decentralized and multi-agent ubiquitous commerce model, that describes a Peerto-peer context aware system, with a distributed historical context (trail) engine and a dynamic profile generator. The aim of the model is to provide an automatic deal opportunity recommendation based on user profile, preferences and activitiy history in a peer-to-peer environment. In this text, we present a system specification and a prototype, including simulated u-commerce scenarios. | en |
