Architecture that translates a complex dimensional hierarchy (e.g., XBRL) into an understandable member picker which removes the complexities that the user would otherwise have to face. Using a building block metaphor, the architecture provides element and dimension tagging. The building blocks can include rows, columns, and optional trees. Building blocks are selected and grouped into a report definition, which definition is utilized to retrieve and process basis data into fact data in the final reports. The reporter mechanism removes the complexities in both the XBRL standard and XML, and ensures that the user associates the information appropriately within the report definition. The architecture extends the building block metaphor to include dimension tagging. A portion of the information from each building block is used to produce a fully qualified dimension context and logical validation is performed to ensure accuracy.