The system achieves various functions of network topology using hierarchical structure and modular
design. Opening interface implements the extension of system, and multilevel loading data improves the
efficiency of the system. In this system, first pull data from the database by the mapping method, and use the
functional module to handle the data between database and managed object; then analyze the difference and
connection through business analysis module to satisfy the needs for topological business. Finally, present the
data through the graphical interface. The system is flexible, expansible and easy to maintain. And the
performance management system and warning system are required for further study.