Changes between Version 9 and Version 10 of Conceptual Design – ER Diagram and Data Requirements


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Timestamp:
08/26/25 13:55:16 (7 days ago)
Author:
221531
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  • Conceptual Design – ER Diagram and Data Requirements

    v9 v10  
    165165\\
    166166* Order ↔ Delivery Man ↔ Restaurant \\
    167     **Junction**: A ternary relationship exists because an Order links simultaneously to a Restaurant where it was placed and a Delivery Man who delivers it.\\
     167    **Junction**: A ternary relationship exists because an Order links the Restaurant where it was placed and a Delivery Man who delivers it.\\
    168168    **''places''** – relation where an Order is prepared by one restaurant but can be delivered by multiple delivery men. A Delivery Man delivers multiple orders from potentially different restaurants. Restaurant produces multiple orders that get delivered by different delivery men.