The 25th ACM SAC conference was held in Sierre, Swiztherland, a very privileged area surrounded by the stunning Swiss Alps. Comparing to my previous attendance, it seems the number of attendees has decreased (maybe just an impression). On the other hand, the quality of works and the level of plenary discussion seem to be improved. Because the conference is multi-track, I could attend sessions of related areas to my current work such as data mining and semantic web.