The SOSTAC Marketing Planning Model is a marketing planning model that helps organizations to plan their marketing initiatives and allocate resources accordingly. The model was developed by the South African technology company, SOSTAC. The SOSTAC Marketing Planning Model is composed of three different stages: a strategic stage, an operational stage, and an evaluation stage. These stages are connected by different types of activities that each have their own cost, time, and resource requirements. In the strategic stage, organizations use data to identify their target market segments. They then create a marketing strategy that aligns with these segments as well as their business goals. This strategy will be implemented in the operational stage where it will be executed using specific tactics such as advertising or social media campaigns.