A network contains instructions on how to carry out activities in a specific way, in a specific order and in a specific time period.
A network consists of activities which are linked to each other by relationships.
You can add detail to a network by means of subnetworks and activity elements.
Activities and activity elements describe tasks which can be processed internally or externally or which deal only with costs.
You can use a network to structure processing for a project or a task within a project.
Costs are collected in the network header or in an activity.