Simulation and Modelling - Old Questions

13.  List out the entities, attributes, activities and events for Banking, Communication, Production, Inventory and Supermarket systems.

a. Banking

    Entities: Customers

    Attributes: Checking-account balance

    Activities:  Making deposits

    Events: Arrival, departure

b. Communication

    Entities: Messages

    Attributes: Length, destination

    Activities: Transmitting

    Events: Arrival at destination

c. Production

    Entities: Machines

    Attributes: Speed, capacity, breakdown rate

    Activities: welding, stamping

    Events: Breakdown

d. Inventory

    Entities:  Warehouse

    Attributes: Capacity

   Activities:  Withdrawing

    Events: Demand

    State variables: Levels of inventory, background

e. Supermarkets

    Entities: Customers, cashier, salesperson

    Attributes: Faster, reliable, responsible, punctual, skilled in sales

    Activities:  sell product, fill displays, organize the supermarket carts

    Events: Arrival and departure of customers, reception of products, lack of products