The research and development results of agent technology are awaited as the software solution with autonomy and social ability, which can provide the way to realize social activities on the Internet. However, the current status of the agent research is that research is for a specific application domain and is not so much generalized , and it is hard to apply the framework of the existing research to other fields. Moreover, it is thought that practical usage of agent is in immature state that there are few practical application examples and the system development methodology is not sufficient. In this research, the problem solving system by the multi-agents is first shown as an application development framework by the agents. Then, we present usage of templates of the agent model and the task model as the development support technique. And the evaluation according to an application construction experiment in the field of remote product management is discussed.