Project planning is a particularly important and difficult part of project preparation. Mistakes that are made in these activities usually cause problems in the implementation phase, causing, for example, the need to make numerous changes to the schedule or budget. The Project Manager is fully responsible for developing the project plan, and for its updating and control during the implementation phase. In practice, especially in larger enterprises, the preparation of a significant part of the plans is carried out by technical specialists in a given field, while the plan is developed using IT tools by the assistant of the Project Manager or PMO. However, it is necessary for the Manager to be good at applying methods, techniques and planning tools, since it is their responsibility to evaluate the plan.
The second important aspect of planning, for which the Project Manager is responsible, is to include in the plan not only direct technical goals, but also business ones.
The particularly important features of an effective project plan are: