For all business process reengineering (BPR) projects, the failure rate is up to 70%. Checking over the reasons that cause the projects to fail, the major unsuccessful factor of BPR resulting from that process-oriented aspect is concerning too much about efficiency and technology, ignoring the related subjects of organizational structures and agents. Most of all, it lacks an integrated solution for both structures and behaviors in an organization. That is, so far there is no research to study the coherent affection caused by business reengineering for both organizational structures and organizational behaviors. This thesis aims to develop an Architecture-Oriented model for the court affairs management. In this model, structure elements, services, and interaction flow for court affairs management are well defined. Adopting this model, officers can understand the entire picture of the court more easily and collect the essential information for organizational structures and organizational behaviors more effortlessly. Architecture-Oriented Court Affairs Management Model, abbreviated as AOCAMM, extremely depends on the theory and method of enterprise architecture. Using the structure behavior coalescence approach embedded in AOCAMM, we are able to describe working situations of organization, business processes, and information systems clearly enough to reduce business reengineering risks. The major achievement of this research is to advise a contemporary methodology for better planning and managing government reengineering projects.