When it comes to requirements mapping, I typically utilize a mix of project management software and physical whiteboard mapping. Although I have experimented with well-known tools such as JIRA, Trello, and Asana, I've discovered that physical whiteboards can be particularly advantageous for certain projects. For instance, displaying requirements and updates in a visual, shared space often fosters enhanced team discussion and creativity, which is crucial during the initial phases of a project. Despite the prevalence of digital solutions, the simplest tools can sometimes be the most effective.