Interface modeling is a technique to describe how different components or systems interact with each other and exchange information. Interface modeling can be used to depict how the solution will work with all of the company’s systems by showing the inputs, outputs, and dependencies of each system. Interface modeling can help to identify potential integration issues, gaps, and conflicts among the systems. The other techniques are not suitable for this purpose. Data modeling is a technique to define the structure, format, and relationships of data. Rules modeling is a technique to define the logic, constraints, and policies that govern the behavior of the solution. Enterprise modeling is a technique to describe the structure, culture, and processes of an organization. References: PMI-PBA® Examination Content Outline, page 11; PMI-PBA® Reference List, page 1, BABOK® Guide v3, page 54.