In this chapter, the individual planning steps and activities are systematically explained, considering differences depending on the project management framework used. Sections start out with defining the project scope, milestone planning, and understanding the overall structure of the project using work breakdown structures. Further sections explore how to estimate realistic effort, identify cost factors in software projects, and establish a solid activity schedule or task board for effective control. Additionally, the chapter addresses workforce planning, maintaining transparency in cost management, and the final creation of the project plan.