In the development phase, Power BI consultants use tools like Power Query, Power BI Desktop, and DAX to create data models and dashboards. Methodologies such as Agile development allow for iterative feedback and improvements. Power BI consulting services focus on creating user-friendly visuals, optimizing performance, and ensuring data accuracy. Techniques like responsive design, role-based security implementation, and advanced analytics with DAX enhance the solution’s effectiveness. By combining technical skills with user-centric design principles, consultants deliver a Power BI solution that meets business objectives and empowers users with actionable insights.