The course will cover both methodological and technical aspects necessary to understand and implement Business Intelligence (BI) and Big Data Analytics (BDA) solutions in real-world contexts. It will address the evolution of BI architectures, decision models based on business functions, and big data architectures such as data lakes and lakehouses. Additionally, the course will explore AI techniques for supporting decisions, including explainable AI (XAI) and conversational AI using word embeddings and large language models (LLMs). The course will provide the foundations to understand, evaluate, and implement BI and BDA solutions, as well as to comprehend the differences between the two.