A current limitation in EA is to establish the adequacy of the modelling and analysis for dedicated business network planning. Much of the focus is on the modeling of interactions across organisations through coordinative artifacts such as processes, services and resources. Thus, an analysis of how artifacts are shifted, as a whole, across partners, is only available in a limited range of interaction contexts. To overcome these issues, this paper develops constructivist insights by way of the key network planning requirements observed, in common situations of business networks including headquarter-subsidiary, business network orchestrator, and virtual organisation. These requirements are discussed through a complex network application in the EGovernment domain, namely One-Stop Shop, citizen-centric service delivery. The analysis of these requirements provided as illustrative extensions for the ArchiMate language to support the business network context.