Fast-tracking is a schedule compression technique that involves performing activities in parallel that were originally planned to be done sequentially. This can reduce the overall project duration by overlapping the start and finish of different activities, but it also increases the risk of rework and errors due to dependencies and uncertainties. Fast-tracking is one of the tools and techniques for the Develop Schedule process, which is part of the Project Schedule Management knowledge area. The other tools and techniques are schedule network analysis, critical path method, critical chain method, resource optimization, data analysis, leads and lags, schedule compression, and project management information system. The other options are not schedule compression techniques, although they may be used in other project management processes or activities.
Analyzing both projects to determine the most effective use of common resources is a way of managing multiple projects and optimizing resource allocation. Using resource optimization to justify requesting more resources for the critical project is a way of balancing the demand and supply of resources and resolving resource conflicts. Providing schedule optimization training to the project teams to improve their skills is a way of enhancing the team's competencies and performance. References:
* PMBOK Guide, 6th edition, pages 201-202, 215-216, 718
* Project Management Professional (PMP) Certification Handbook, page 9
* 5 Methods for Shortening A Project Schedule, section "Fast Tracking"