Assumptions are factors considered to be true in the planning phase.

As they are not certitudes, a certain degree of risk is involved. In fact, in Risk Identification process as part of the Project Risk Management, assumptions analysis takes an important role. Also, in Qualitative Risk Analysis, assumptions are important input data.

Examples of assumptions:

  • a person or equipment will be available at a certain date
  • the weather will allow an outdoor operation at a certain date
  • stakeholders will take a decision in the next meeting

Assumptions should be documented as part of the basis for the risks list. In RationalPlan Project Management Software a special step of the Project Guide is assigned for Assumptions and Constraints definition.