the importance of each phase of a system life cycle

The purpose of this assignment is to explain the importance of each phase of a system life cycle and the major stakeholder roles in a new system implementation.
Requirements: Create an audiovisual or PowerPoint presentation with speaker notes, that addresses:
The system life cycle process and the role of employees in the process.
The identification and roles of at least five stakeholders.
Explain the purpose of a minimum of four key project management tools planned for the project
Develop a detailed communication plan for the project.
The audiovisual or PowerPoint Presentation should be 12 slides long