Normalisation Exercise (Hardware Store) Cunnings Hardware House is a retail chain selling building tools and supplies for tradespeople and handy people. It operates in many locations in Sydney. The following is extracted from the company's spreadsheet to show the relationships among different data fields. You are employed to develop a relational database system by normalising the spreadsheet and create an Entity-Relationship Diagram (ERD) to match the resulting tables of the data normalisation process. You are required: a) Normalise the below spreadsheet to tables in the third normal form (3NF). Specify the primary key and foreign key (if any) for each resulting table (8 marks). b) Develop an Entity-Relationship Diagram from the resulting tables in (a) (12 marks) CustID CustPhone CustName CustAddr ProdCode ProdName | ProdPrice | ManuflD | ManufName Bob the Beaumount Treated 2014 61296859878 Builder Hills GT1500 Pine Gate $74.25 V123 Timberland Bob the Beaumoun Quik Set 2014 61296859878 Builder Hills OSC100 Cement $7.70 V833 Bastion Joe Quik Set 3752 61298765432 Handyman Rouse Hill QSC100 Cement $7.70 V833 Bastion Bob the Beaumount Wrapped 2014 61296859878 Builder Hills DAR88 Posts $40.10 V511 Kaituna John Quik Set 8125 61296851692 Roofman Northmead QSC100 Cement $7.70 V833 Bastion John 8125 61296851692 Roofman Northmead RV300 Roof Vent $69.00 V833 Bastion Shop# | ShopLocation ShopPhone QtyAvail QtySold Sales# SalesDate StaffID StaffName 15 Castle Hill 61296394567 55 $1325 13/05/2017 164 James Bond 15 Castle Hill 61296394567 1478 2 $1325 13/05/2017 164 | James Bond 15 Castle Hill 61296394567 1476 S1330 13/05/2017 164 James Bond 15 Castle Hill 61296394567 231 15 $1012 20/03/2017 130 Tom Cruise 22 Parramatta 61296859678 350 4 $7651 10/04/2017 762 Russell Crowe 22 Parramatta 61296859678 54 2 $7651 10/04/2017 762 Russell Crowe