The statement is valid in the Identity Security Cloud source model. A source represents an external enterprise system that maintains accounts or personnel records. Those source accounts are aggregated into Identity Security Cloud so they can be correlated with identities and governed.
SailPoint's official definition states that a source represents a third-party enterprise application, database, or directory-management system maintaining its own set of user accounts or personnel records. For example, an Active Directory source can contain directory user accounts, while a database source might expose database accounts and a SaaS source might contain application-specific user objects.
This distinction between an identity and a source account is fundamental. One Identity Security Cloud identity can be correlated to accounts across multiple sources. The identity represents the person or governed entity, whereas each source account represents that identity's presence in a particular external system.
During aggregation, Identity Security Cloud loads account attributes and associated access from the source, correlates those accounts to identities, and uses the resulting relationships for provisioning, access modeling, certifications, and governance.
Study Guide Reference: Sources — Sources and Connectors, Source Accounts, Account Aggregation and Identity Correlation.
===============
