The association aims to promote interdisciplinary treatment methods for patients with bone and soft tissue tumors through diagnosis, therapy and monitoring. To this end, the association operates the Sarcoma Board, where interdisciplinary exchange between the specialist disciplines necessary for the treatment of a sarcoma is promoted in order to establish a treatment strategy, SwissSARCOS, where clinical data are collected within a cohort, and basic research including the collection of tissue samples (liquid and solid).