IS465: Adv. Info. Sys. Problem Solving Min Song Information Systems Dept. What is a Problem? How do people approach and solve problems? What are the major ...
Some are STILL in use! Problems with this approach? Changes ... Represented by the presence or absence of a 'crows foot' One-to-One. One-to-Many. Many-to-Many ...
'A set of associations between one or more entity type.' ( Connolly & Begg, 2002) Examples: ... ISBN, PIN, Drivers Licence Number, Course Code... Foreign Keys ...