In this article we will explore domain analysis as a fundamental method for building information literacy projects. With the increasing availability of information in different formats and media, there is a need for increasingly critical and ethical informational practices in contemporary society. In this context, the promotion of information literacy has gained prominence as an essential component of education, so that it is possible to deal with the vast and complex universe of information. The research aims to analyze how domain understanding affects the structure and implementation of information activities, as well as the selection of appropriate resources to support the promotion of information literacy. It also discusses the main steps and techniques involved in domain analysis and presents practical examples of its application in different contexts. The elaboration of information literacy projects and activities aim to offer a practical and oriented approach to living in society, allowing people to engage in concrete activities that involve the search, selection, evaluation, organization and use of relevant information for an activity in a certain context. For these projects to be suitable, it is essential to understand the domain in which they are inserted. Therefore, the domain analysis methodology emerges as a possibility to understand the context, the actors involved, the needs and challenges related to a given field of knowledge. By performing an indepth analysis of the domain, it is possible to identify the main concepts, terms, information sources, organization models and communication flows that characterize the field in question. This in-depth understanding of the domain allows for a more thoughtful approach in building information literacy projects, contextualized and aligned with the needs of the people who make up the community involved. By incorporating a domain analysis as an integral part of building information literacy projects, those involved can provide a solid foundation for promoting critical and ethical information practices so that solidarity and harmony in information dynamics and environments is possible.