Which is NOT a primary source of data for BI?

The option representing paper filing systems is not considered a primary source of data for business intelligence (BI). Primary data sources are those that collect raw data directly from its origin for analysis and reporting.

Transactional databases, CRM systems, and social media platforms all serve as direct information repositories. They gather and maintain data that can be utilized in various analytics and BI operations. For instance, transactional databases store information about business transactions which is critical for performance analysis. CRM systems manage and analyze customer interactions and data throughout the customer lifecycle, thus offering valuable insights for BI. Similarly, social media platforms provide vast amounts of user-generated content and engagement metrics that can inform business strategies and decisions.

In contrast, paper filing systems represent a more traditional method of data storage that is often not conducive to modern BI processes. They do not offer the capability to easily collect, analyze, or integrate data into digital BI tools, making them less relevant in the context of data sources used for BI purposes. Therefore, this option is appropriately identified as not being a primary source of data for business intelligence.