SOSTAC® marketing plans [infographic] Applying PR Smith's SOSTAC® planning to digital marketing SOSTAC® is a marketing planning model, originally developed by PR Smith in the 1990s to help.

Teams with short project cycles often turn to agile project management, a fast and flexible process that rides on the principles of change, uncertainty and making realistic estimates. Here are the 3 necessary steps to produce a successful sprint-length project, from the planning process to final execution.