There are eleven truths considered as parts of business requirement gathering.
The
focus of business requirement gathering is understanding the business problem
and then finding a solution.
Truth 4: There is an important difference between building a piece of software and solving a business problem. The former does not necessarily accomplish the latter.
It is very difficult for an individual user to understand the broader ramifications of deploying a piece of software. Typically software users do not know enough about the wider business to decide whether this incarnation of software will cause problems in some other part of the business.
Truth 11: BA will change the way users think about a problem. BA helps stakeholders understand and question the requirements.
When BAs have clear and measurable requirements, and when they reflect all this truth back to the stakeholders, it will change (for the better) their thinking about their business problem. Once people have a better understanding of the real meaning of their requirements, they are likely to see ways of improving them.