Description: Interaction analysis in multimodal systems refers to the study of how users interact with systems that integrate multiple modes of input and output, such as voice, text, gestures, and graphics. This approach aims to understand and enhance the user experience by allowing interactions to be more natural and efficient. Multimodal systems are those that combine different forms of communication, enabling users to choose the modality that best suits their needs in a specific context. For instance, a user might opt to speak to a virtual assistant, write a message, or use gestures to control a device. This analysis focuses not only on technology but also on user psychology, considering how different modalities can influence user perception, understanding, and satisfaction. The relevance of this field lies in its ability to create more intuitive and accessible interfaces, which is especially important in a world where technology is increasingly integrated into our daily lives. As artificial intelligence and machine learning advance, interaction analysis in multimodal systems becomes a critical area for developing applications that are user-centered across various technological domains.