1. Money is necessary for start a food business. (2). Skilled staff is necessary. (3). varity of food item and materials is necessary. (4). Public contact and good customer service is necessary. (5) Infra structure is necessary. (6) Working knowledge and dedication is necessary.
You must get premises with catering equipment which are up to the health inspectors standard. Money is an issue maybe a bank loan or your savings. Advertise your business to get costumers and some form of transport will be needed.
It all depends what kind of food business you are going into. First, go to the Health Department with your plans and see what guidelines you must follow. Where you are going to open a food business is also something to consider.