Scenario 2: This is a simple list table of a company trying to keep track of employee assignment to company projects (in other words, not a database but a flat one table file). You will design a database for this company so that they won't be relying on a simple 1 table list system to keep track of their data. Looking at the table below, identify the separate entities and attributes and design a logical level Entity Relationship Diagram for this company. Project Project Name Project Project Employee Employee Department Department Hourly Code Manager Mr. Ajay Budget No. Name No. Name Rate PC010 Reservation 120500 S100 Mohan D03 Database 21.00 System РС010 Reservation Mr. Ajay 120500 S101 Vipul D02 Testing 16.50 System PC010 Reservation Mr. Ajay 120500 S102 Riyaz D01 IT 22.00 System HR System PC011 Mrs. 500500 S103 Pavan D03 Database 18.50 Charu PC011 HR System Mrs. 500500 S104 Jitendra D02 Testing 17.00 Charu PC011 HR System Mrs. 500500 S315 Роoja D01 IT 23.50 Charu PC012 Attendance Mr. 710700 S137 Rahul D03 Database 21.50 Rajesh System Attendance PC012 Mr. 710700 S218 Avneesh D02 Testing 15.50 Rajesh System Attendance PC012 Mr. 710700 S109 Vikas D01 IT 20.50 System Rajesh 1|Page

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.