A business analyst (BA) must model information characteristics across multiple information systems for a project.

 Interface analysis is a technique used by business analysts to model information characteristics across multiple information systems for a project. It involves identifying and describing the interactions and exchanges of data and information between different systems, components, or processes.Interface analysis helps to ensure that the information flows are consistent, accurate, and complete, and that the system requirements are met.

References: The answer and explanation are consistent with the CCBA® Handbook and the IIBA® website, which provide the details and best practices for the interface analysis technique as part of the business analysis process12. The CCBA® resources also describe the types and formats of models that can be used to perform each task in the business analysis process, such as interface models