Tech Tool: Spreadsheet Software or Visio Software
Software Video: ERD and REA Drawing
You have been asked to design an ERD for a database to better track employees and their skills. You identified three entities: department, employee, and employee skills.
1. Making assumptions regarding business rules as appropriate, define the relationship among department, employee, and employee skills.
2. Draw an entity relationship diagram.
3. Identify an identifier for each entity.
4. Remove many-to-many relationships, if necessary.
5. Print your ERD.
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