In seeking answers to your software questions, your best source may be other business operators. (This is not to say that competent salespeople and company reps are not valuable information sources, only that they're not in a business similar to yours, and they may have a financial interest in influencing your purchasing decision.)
Go online for information from sources such as industry and technology websites and blogs. Consult with other business owners to learn which tasks they've effectively computerized and which applications software they're running. Are they happy with their software? What do they like and dislike about the software? How easy was it to put the software to work? How much training was required?