What theory or analysis model can be applied for business challenge part in market plan? (exclude SWOT and Poter's Five). thx

The Business Challenge In the "business challenge" section of the plan, the planner describes the offering and provides a brief rationale for why the company should invest in it. In other words, why is the offering needed? How does it fit in with what the company is already doing and further its overall business goals? In addition, the company's mission statement should be referenced. How does the offering and marketing plan further the company's mission