Description: Functional analysis is an approach that focuses on studying the functions of a system with the aim of improving its design and performance. This process involves breaking down a system into its fundamental components to understand how each part contributes to the overall functioning. Through this analysis, areas for improvement, optimization, and efficiency can be identified. In the context of software development, functional analysis allows for clearly defining the requirements and expectations of the system, ensuring that each function fulfills its purpose. In mathematics, it relates to the theory of functions and their behavior, providing a framework for modeling and solving complex problems. In Business Intelligence (BI) tools, functional analysis helps transform data into useful information, enabling organizations to make informed decisions. In agile methodologies, this analysis is crucial to ensure that the software developed not only meets customer requirements but is also of high quality and easy to maintain. In summary, functional analysis is an essential tool across various technological disciplines, as it allows for a deep understanding of systems and facilitates their continuous improvement.