The department is carrying out a feasibility study on a Project Collaboration System (PCS). In brief, the PCS aims to support administration of public works contracts in an effective manner by means of: (i) provision of a collaboration platform among external contractors and consultants and internal staff of the department; and (ii) better management of site documents through the establishment of a unified electronic Document Management System (eDMS). During the study, we would like to explore if any innovative solutions can cope with the project requirements. The system will have decentralised servers and local network scattered at temporary site offices of construction sites. It is expected severe physical environment will be faced by the IT equipment, e.g. potential expose conditions similar to outdoor and limited/unstable wide area network or Internet connection. We would like to explore for solutions that the equipment can cope with the situation and can perform effectively and securely.