An enterprise business planning system includes a database having a relational data area and a transactional data area, and a server to store within the transactional data area contribution data received from a set of enterprise contributors. The server publishes the contribution data from the transactional data area to the relational data area. The transactional data area may include a set of contribution slots and a set of aggregations slots hierarchically related in accordance with an enterprise model. The relational area includes a set of related tables defined in accordance with the model. The transactional data area supports real-time interaction with the enterprise contributors, while the relational data area allows detailed statistical analysis and report generation.