Note the assumptions and constraints which can affect the project
The assumptions are factors considered to be true, real or certain in the planning phase and involve a
degree of risk (e.g. if for an activity it is needed a special equipment, the project manager may assume that it will be available).
Constraints are restrictions which can affect the project's performance.
The most popular constraint is the budget which limits the scope, staff and schedule.
Both the assumptions and constraints must be taken into consideration in all the aspects of the project planning.