The document introduces the SOSTAC model for developing a marketing communications plan. SOSTAC is an acronym that represents the six stages of a marketing plan: Situation analysis, Objectives, Strategy, Tactics, Action planning, and Control. It provides a structured yet flexible framework for crafting a plan that considers the current business context, goals, strategies, implementation tactics, action items, and controls for monitoring and adjustment. Following the model helps ensure all relevant factors are addressed without excessive detail.