Why must assumptions be clearly documented during requirement analysis?

Clear documentation of assumptions during requirement analysis is crucial because conditions that currently hold true may change over time, potentially leading to negative impacts on the project. By documenting these assumptions, teams create a reference point that allows for proactive management of those risks. If assumptions are not recorded, any changes in the underlying conditions could lead to misalignment between project expectations and actual outcomes, resulting in issues that were not foreseen or managed effectively.

Additionally, having a documented record of assumptions aids in communication among stakeholders, ensuring that everyone has a shared understanding of the project's foundational beliefs. This shared understanding is vital for effective decision-making and risk management throughout the project lifecycle. Documenting assumptions helps to provide a clear framework within which the project's progress can be evaluated and adjusted as necessary, minimizing the likelihood of adverse effects arising from unanticipated changes in conditions.