The staff at 'Frankli    Consulting'    have to routinely visit their clients in other cities. Franklin have a fleet of cars available for staff travels. During their trips, the staff sometimes need to fill up the car fuel. Upon returning from the trip, the staff claim that expenses back by providing the fueling receipt and some other essential information. The accountant records all of that information in a spreadsheet. Below are the spreadsheet column headers and a sample of data from each column.  

  

Given the information in above table,

• Draw a dependency diagram to show the functional dependencies existing between columns. State any assumptions you make about the data and the attributes shown in the table. (3 marks)
• Show the step by step   process of decomposing the above table into a set of 3NF relations. (5 marks)
• Review the design of your 3NF relations and make necessary amendments to define proper PKs, FKs and atomic attributes. Any additional relations may also be defined at this stage. Make sure all of your attributes conform to the naming conventions. (3 marks)
• Draw the Crow’s Foot ERD to illustrate your final design. (4 marks)

For guidance on how to normalize database relations from a dependency diagram, watch this very short video: https://www.youtube.com/watch?v=vkUyuLLgmwQ

All dependency diagrams and ERD must be created using a drawing tool. Hand-drawn diagrams are NOT acceptable.

Column Name Example Data Trip ID 4129 Staff name Sarah James Car details Toyota Land Cruiser 2015 License Plate 1CR3KT Odometer reading 25,067 Service station Coles Express Station address 27 Queen St, Campbelltown, NSW 2560 Fill up time 30 Jan 2020, 2:45 pm Column Name Example Data Fuel type Unleaded 95 Quantity litres 55 Cost per litre $1.753 Total paid $96.42