Abstract: A network documentation system computer program (302) for documenting a network (100) receives a configuration of elements (205) within the network (100). Methodology (320) of the program represents the elements (205) by nodes (336) in a model of the network (100). Each of the nodes (336) is defined by one of a plurality of nodes types (402), and each of the node types (402) governs structure rules (504) for child nodes (808) and connectivity rules (508) for defining links (338) between nodes (336). The nodes (336) are presented in a network graph (312) in accordance with the structure rules (504) to document the network (100), with the child nodes (808) associated with their respective parent nodes (806). The links (338) are depicted between the nodes (336) in the network graph (312) in accordance with the connectivity rules (508), and represent connections between pairs of elements (205) in the network (100).