Due to an evolution of business models compatible with networked economy, office — environments of this age need effective support for collaboration among office workers. This article demonstrates that existing Extended Office Systems (EOS) are not specifically designed to maintain awareness and knowledge‑sharing requirements of the collaborating actors of many of today's networked office environments. Using an awareness framework for sharing of contextual knowledge in collaborative business processes, this article provides general design directives for a Collaboration‑ Aware EOS (CAEOS) system that facilitates sharing of the contextual knowledge among office workers in networked offices. In order to assess its effectiveness, this framework is applied to a network management case study with the aim of identifying the awareness requirements of the actors within that process. The results confirm effectiveness of the framework. The components of the framework, that is the process model and the awareness model, are then used as analytical tools as input to the design of CAEOS for achieving its collaborating goals. It is suggested that the process model component of the framework to constitute foundation for the knowledge‑base component of the CAEOS, whereas the awareness model of the framework to constitute foundation for the inference engine of the CAEOS'.