Unlike the project plan, where details are fleshed out, the roadmap should be simple and free of minutiae. The project roadmap is a useful tool for managing stakeholder expectations, as well as for communicating plans and coordinating resources with other teams.
A project roadmap should contain the following:
Project goals and objectives
A timeline indicating the schedule
Important milestones and deliverables
A Gantt chart can help you get a visual overview of your project roadmap. It displays the project and all tasks and dependencies on an interactive and dynamic timeline. You can focus on one phase or view the entire project.