How many types of project plan.

Quality plan - This plan describes the quality techniques and standards that will be used in a project. Validation plan - This plan explains the approach, resources and schedule necessary for system validation. Configuration management plan - This plan focuses on the configuration management procedures and structures to be used. Maintenance plan - The purpose of maintenance plan is to expect the maintenance requirements of the system, efforts and  maintenance cost required. Staff development plan - This plan explains how to develop the skills and experience of the project team members.