According to the BABOK® Guide, one of the tasks of the business analyst (BA) during requirements lifecycle management is to validate requirements. This involves ensuring that the requirements and designs support the delivery of value to stakeholders, fulfill the goal or objectives, and meet the quality standards. One of the techniques that can be used for this task is assumption and constraint analysis, which is the process of identifying, documenting, validating, and managing the assumptions and constraints that affect the requirements and designs. Incorrect assumptions are statements that are believed to be true without sufficient evidence or validation. They can create a situation where the design cannot be validated to support the requirements, as they may introduce errors, risks, or inconsistencies in the solution. References: BABOK® Guide, Version 3, Chapter 7, Section 7.2; Business Analysis Expert Certification, CCBA® | IIBA®, Section “What Should I know to be CCBA Certified?”.