Now that you have defined your E-R model and project description, start moving your logical E-R model to the physical. In a Microsoft Excel spreadsheet, define columns with the following headings: Each row will contain your rows for this table. Fill out the columns row-wise. Using Microsoft Paint, create an E-R model of your six tables from your spreadsheet for the development of the business requirements and constraints that will maintain the business logic for your database. The E-R model should be readable and should map to the spreadsheet and the project description. It should have all cardinality and optionality defined.
