Apptio has launched a new knowledge base dedicated to information and discussion about the Apptio TBM Unified Model (ATUM). This KB is located here.  

The ATUM Knowledge Base has information on ATUM v2 and ATUM v1, and includes definitions, videos, presentations, spreadsheets and other reference materials.  

Please post any questions related to ATUM or the TBM Taxonomy to the ATUM Q&A Forum.