A stand-alone, menu-driven integration system software package is disclosed. The integration system can include a task library, a planning system, a projection system, a comparator system, and a reporting system. The task library can maintain a list of integration tasks for execution after closing of a merger between two or more organizations. Before closing, the planning system receives estimated date related to each task. After closing of the merger, execution of the integration tasks begins. The projection system can receive an action plan for each integration task. The action plans can be updated regularly, such that the projection system can maintain an accurate, current projection of results of the integrations tasks. The comparator system can monitor progression of the integration by comparing planned and desired data, receiving in the planning system, to projected data, received in the projection system. The reporting system can provide reports to monitor the integration.