1. Identify
Identify and understand what your business needs. This will save you from the hassle of running into problems in the future.
2. Set
Set a budget and don't buy strictly on price - if a complete full function POS system costs $25K, will you buy it thinking that the more expensive a POS system is, the better it's going to perform? Or will you buy a cheaper one hoping it doesn't have any bugs and performs like a pro? Check your funds to see what you can realistically afford. Most of the available systems are affordable monthly fee based that comes with free updates and remote customer service.
3. Determine
Determine hardware requirements. Some POS systems will allow you to use existing hardware, while others come complete with the necessary gear. It's really up to your budget, but getting a POS system installed on hardware supplied by the providers is a better alternative and comes with less problems.
4. Make
Make a shortlist of POS providers - having more than one option lets you choose the best one that fits your business model and gives you leverage on negotiating some extras or value added services.
5. Ask
Lastly, ask! Ask if they can provide a demo/ or
free trail
of the software. At least you get a feel for the interface.