Patent ID: 7860698

Claim:
A network design processing device for inputting a network diagram through a computer screen, analyzing design diagram data obtained from the input network diagram, and extracting network design information to store the network design information in a database, the network design processing device comprising: a network diagram creation processing unit for inputting setting information for service communications for task execution in a network system to be designed and setting information for maintenance communications for maintenance management of the network system, while differentiating the setting information for service communications and the setting information for maintenance communications on the network diagram, and for displaying a line joining a starting point and an ending point of a communication on the network diagram in different display modes between the service communications and the maintenance communications; a design diagram data storage unit for storing the design diagram data expressing the network diagram, the design diagram data including the setting information for service communications and the setting information for maintenance communications inputted by the network diagram creation processing unit; and a design diagram data analysis unit for analyzing the design diagram data read from the design diagram data storage unit, extracting information for each device constituting the network and a connection information of the each device constituting the network as well as the setting information for service communications and the setting information for maintenance communications, and storing the extracted information in a design information database; a communication setting information check unit for analyzing the setting information for service communications stored in the design information database, searching for a server having communications from outside of the network system to be designed, thereby searching for another server being chained and having communications with the server, and detecting a remaining server which deviates from a communication-chain; and a check result output unit for, when a deviating server deviating from the communication-chain is detected, displaying, on the network diagram, information indicating that the deviating server has no interaction with the outside world.