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数据库大作业/家庭保健信息系统/Home-Healthcare Information System/This assignment is to perform the logic design of an information system. It involves the construction of a DFD, an ER diagram, mapping to the relational schema, and the normalization of the resulting relational schema. The necessary information for schema design is given in the.Universe of Discourse (UoD).This assignment can be completed as a group. The maximum size of a group is three people.Each group is allowed to submit only one file. For any student whose name appears within two or more groups, the result will be whichever is the lowest.