In essence, restaurant industry has much in common with retail industry. It is mostly card-present one, so it calls for implementation of card-present solutions. The most important peculiar feature of restaurant payment processing is that it involves handling of tips. In the era of credit card processing tip adjustment mechanism is an important thing, which merchants and restaurant POS software vendors should always keep in mind.
As EMV standard gains power, new card-present solutions for restaurant credit card processing emerge. They allow customers to input tip amounts straight into payment terminals and direct tips to multiple recipients at the same time.
More detailed information on modern payment terminal solutions for restaurant industry is available in the respective article on Paylosophy.