Matrices in modeling formats are used to describe complex but uniform structures. They are particularly useful for breaking down and organizing complex requirements into a structured and understandable format. By inputting simple requirements into a matrix, business analysts can model requirements that are complex in nature but uniform in structure, such as those found in data dictionaries, gap analysis, and requirements traceability.
References: This application of matrices is consistent with business analysis practices and is supported by resources that describe the use of matrices for modeling complex but uniform structures in the context of business analysis1.