A franchise is a fully built business in a box. Although the owners hate that name, it is exactly what a franchise is. And it has everything you need to start off in business. For example, it has all the research done: analysis, financial, and cost inventory.
All you have to do is buy into it and start putting it together. When you buy a franchise, becoming a franchisee, it gives you the right to trademarks, associated brands, and other proprietary knowledge in order to create a business of your own.
Read the more in-depth article about becoming a franchisee on my website