Which of the following is NOT one of the four layers of the SAP Business AI Stack?

The four layers of the SAP Business AI Stack are designed to structure and facilitate the integration of artificial intelligence into business processes. These layers include components such as the AI Foundation on the Business Technology Platform (BTP), which provides the necessary infrastructure for AI applications. Additionally, the AI Ecosystem and Investments layer encompasses partnerships and collaborations with various stakeholders to enhance AI capabilities within the SAP environment. Joule CoPilot acts as an intelligent assistant that helps users interact with applications more effectively through AI-driven enhancements.

Data Governance, while essential in managing data quality and compliance in AI initiatives, is not specifically classified as one of the foundational layers of the SAP Business AI Stack. Instead, it is a broader concept that supports various components of AI implementation by ensuring that data is managed properly throughout the entire system. Thus, identifying it as a part of the AI Stack might lead to confusion about its primary role, which is more associated with standards and practices in data handling rather than serving as a layer of the AI architecture itself.