I recently worked with a business to upgrade their Point of Sale software. Over 20 different products and vendors were investigated, with several engaging in-depth regarding stakeholder requirements, and the workflow of each transaction and function. Let me tell you, there was a boggling amount of jargon thrown around, and anyone going through the process would be forgiven a heavily furrowed brow!
I have three, or four, favourites and Retail Express is one of the best out there; this article is their own infomercial, or editorial advert, however it does touch on key areas to keep in mind. The benefits and savings of a good up-to-date system can be measured in dollars, and hours.