No matter which type of planning, when we start to develop it, the most important issue is to seize the most relevant task to this planning. The task of a plan can be simple or complex. Whether simple or complex, planning task must include the following three major elements: (B) Product/Service, (C) Project Management, and (D) Strategic Management. Because product/service plays an innermost ring role in the planning, so it is surely the most important one. In other words, if the innermost "Product/Service" is not clearly described then neither the second inner "Project Management" nor the outermost "Strategic Management" will be clearly described. Therefore, the key to writing a good "sales promotion plan" lies in a clear description of the innermost "sales promotion system." This book uses the SBC architecture description language to accomplish the description of the "sales promotion system." No SBC architecture means no planning. By reading this "Guide to Writing an Architecture-Oriented Sales Promotion Plan" book, readers shall find that SBC architecture truly helps us write an excellent Sales Promotion Plan in a tremendously effective and efficient way.