We present a
ugmented Reality-supported service
work for distributed and collaborative interactions in
biquitous environments (U-CAFÉ). The proposed approach adopts semantic web-based context management and reasoning for supporting context-aware services. Further, it utilizes augmented reality for providing more relevant and human-centered interactions and collaborations. A semantic web representation language, Topic Map, is used to manage and reason about ubiquitous service-related contexts explicitly and systematically. Augmented reality-based interactions are used for embedding virtual models onto physical models considering contexts and for enabling bi-augmentation between virtual and physical models. The proposed framework has been successfully applied to design collaboration and intelligent home services.