Construction of forest administration management information system (FAMIS) is an important step to set up digital forestry system. Forest business process is complicated, so this paper researches the workflow technique applying in FAMIS. First the workflow meta model proposed by Workflow Management Coalition is studied. Then, this paper analyses characteristic on flexibility in workflow system in detail, defines a model of flexible workflow system. At the same time, a model of distributed FAMIS is put forward by object-oriented modeling technique. A structure of this system is described at la...