摘要：Meet our original goals，A usable general purpose framework，Driving by ourselves，Specific requirements for us，Parallel Computing with Multi-Threads。Based on SmartRef, we developed a helper class, EvtNavigator, tosimplify data I/O and to meet the need of correlation analysis.combine event at different phases together with data path.possible to describe event splitting accurately.convenient for event navigation , for example，help users to navigate from reconstructed event to MC truth information.
