Even though it is perfectly acceptable and is a common practice to use the 8_stage classic model for the e_marketing plan as well, you might want to consider the simplified version proposed by Chaffey, who identifies four major steps to build the e_marketing plan:
You will need to define your goals and objectives. We always encourage companies to make their goals S.M.A.R.T. which means Specific, Measurable, Attainable, Realistic, and Time Sensitive with dates attached. Most goals are calculated on an annual basis. However, the more ambitious owners or executives will look ahead at 3, 5, and 10 year goals as well. And if you are in Japan, you will be setting 100 year goals.