(1) The paper presents SAMSTAR, a semi-automated method to generate star schemas from entity relationship diagrams (ERDs). (2) SAMSTAR uses the Connection Topology Value (CTV) to identify candidate fact tables based on entity relationships, and Annotated Dimensional Design Patterns (A_DDPs) to identify candidate dimension tables. (3) The algorithm calculates CTV scores for each entity to identify fact candidates, then uses direct and indirect relationships, WordNet synonyms, and A_DDP lists to identify dimension candidates for each fact.