Specifications and Requirements

Vending Machine Specifications and Requirements

who are the stake holders?
     user?
     owner?
     product makers
     property owner

   

HIGH LEVEL GOALS
   $$
     cost of product, machine
     demand, creating demand, incentive
   availability

Consider:
   How to appeal to customers (competitoin)
   Automate an interaction
   What is the product?
          *mechanism, cost, definition of vending machine
    Feedback
          *selection, price, how to select, warnings, don't-tip-me-over sign
Full range of exceptions/expectations
    out of stock/change
    invalid input/use
    log/record (safety of food)
    exception state(s) --> out of order
Security requirements
   subversion, intentional misuse
   physical and logical
   user and operator safety, financial safety
   pests and varmints