Agile Business Analysis Practice Exam 2026 - Free Agile Business Analysis Practice Questions and Study Guide

Multiplicity in a business domain model is a critical concept that denotes the quantities involved in data relationships. It specifies how many instances of one entity can be associated with instances of another entity. For example, if a customer can place multiple orders, the multiplicity would express that one customer relates to many orders.

This understanding assists stakeholders in grasping the dynamics and constraints inherent in the relationships between different data entities, such as one-to-one, one-to-many, or many-to-many relationships. By defining the multiplicities, analysts can make informed decisions about how data should be structured and how entities interact with each other, which is essential for developing robust systems that meet business needs.

In contrast, the other options refer to aspects that are distinct from multiplicity. Classes of data focus on the types of entities within the model; types of relationships refer to the nature of connections (like associations or dependencies) rather than their quantities; the overall structure of the data model encompasses the organization and hierarchical relationships among entities rather than the specific counts.