This document outlines the SOSTAC model for marketing communications planning. The model consists of 6 stages: 1) Situation analysis to assess the current business performance and environment, 2) Setting objectives that are specific, measurable, achievable, relevant and time-bound, 3) Developing the strategy around segmentation, targeting and positioning, 4) Creating a tactical plan for communication tools, messages and resources, 5) Developing an action plan with responsibilities, timeline and measurements, 6) Establishing control measures to track progress against objectives and take corrective actions.