A business plan should be detailed. In listing your products and services for example, you should not really stop by just enumerating them. You also should write down the descriptions and scope of your products and services, touch base on production and identify means on how you can market your "brain - child" to your targeted niche.
Executive summary- The executive summary is the backbone of the business plan and it should include a brief background of the business concept, company's objective's or your plan, ownership structure, management team, service offering, target market(s), competitive advantages, marketing strategy and high-level financial details like expected profit, required funding etc. It helps the bank or finance executives to get an idea of your business.
Plan of Operations : Think of this as how you are going to spend a day at your business. How will work get done, from taking orders through to delivery? This can really help you to understand how your business will work and any potential problems or room for improvements.
Operations plan- This section will include details of execution of the day to day operations of your business, location of your business and how it will benefit your business, HR policies of the company and the production plan if you are offering products.