PMP Practice: Estimate Work Effort and Resources

Phoenix Delacroix-Nguyen is managing a project for Nikolai Volkov-Sorokin to build a new pharmaceutical manufacturing facility. The project must comply with strict FDA regulations, follows a fixed construction timeline with sequential phases, and requires detailed documentation for regulatory approval. The project sponsor mentions that some team members have suggested using an agile approach because 'it worked well on our last software project.' During the planning phase, Zara is determining the most appropriate methodology for estimating work effort and developing the integrated project management plan. The facility design is 85% complete and has already passed preliminary regulatory reviews. What approach should Phoenix take for planning this project?