Physical architecture components - Software components : Data Storage(DM layer의 object persistence), Data Access Logic(DM layer의 data access과 manipulation), Application logic(Problem domain layer에 위치), Presentation logic(human-computer interaction layer에 위치, 사용자에 정보 제시 & 사용자 명령 수용(UI) - Hardware components : Client computers, servers, connecting network Physical Architectures ① server-based clie..