I teach that you should seek to learn from competitors; obviously never copy another business's idea or what they are doing, but you can absolutely learn from their mistakes or see what they are doing and discover ways to improve it. All of that analysis belongs in your business plan: make sure you have your competitors under the microscope and make sure that is a solid chunk of your plan. That is some of the best research and information you will gather about what will make your business successful in future.
Creating a Marketing Plan _ Similar to a business plan, the marketing plan spells out how you will market to new customers and retain current ones. The marketing plan should identify your target customers and develop a strategy to reach them effectively. Your marketing plan usually includes market research that gives you a profile of the ideal customer. As with your other plan, it is important to identify any strengths, weaknesses, opportunities and threats that may affect your company's operations.