As on any project we must discuss first what deliverables are useful, and possible on your current development stage, however I suggest: - User personas, journey maps, and scenarios that capture key user behaviors, pain points, and goals based on contextual inquiry and user research. - Stakeholder interviews and requirements documentation that align cross-functional teams on business objectives, constraints, and measures of success. - Competitor analysis audits that evaluate competitor products/services and identify strengths, weaknesses, and opportunities for differentiation.

As on any project we must discuss first what deliverables are useful, and possible on your current development stage, however I suggest: - Low-fidelity wireframes that explore different layout and structural options for key user flows and workflows. - Interactive prototypes or clickable mockups that allow stakeholders and users to experience and provide feedback on preliminary design concepts. - Design pattern libraries that document reusable UI components, visual styles, and interaction models to maintain consistency across solutions.