# Glossary Following table contains terms used in this documentation.

Term	Meaning
Term	Meaning
`user`	Cashier (when using cash register application, or manager using admin application).
`device`	Cash register (either stationary application for desktop operating systems, or mobile application for mobile operating systems such as android or iOS) or any other application within PORTOS ecosystem.
`plu`	Merchandise article.
`ticket`	Food order. Until order is paid, food order is addressed as opened ticket. After order is paid (and receipt is printed), food order is addressed as closed ticket.
`order`	Food preparation request, that is created after articles are added to ticket. Example: user (cashier), based on customers request, adds plu article(s) to ticket, which leads to order creation, that is being handled by cook.
`order processing`	Process of printing/indicating food orders (to kitchen printers or kitchen displays)
`ticket closing`	Process of printing fiscal receipt (transition from opened ticket to closed ticket).
`fiscal device`	Receipt printer that prints cash register receipts (part of ticket closing procedure).
`order endpoint`	Kitchen printer or kitchen tablet. An device/application, usually located in kitchen, that handles food orders.

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