A company decides to implement a new centralized document repository platform. Some requirements are well defined and others need more detail. What should the project manager determine first to decide how to manage the project?

The project manager should first determine the most appropriate life cycle approach because this decision sets the foundation for how the project will be planned, executed, and controlled. Given that some requirements are well-defined and others need more detail, a hybrid approach combining predictive and adaptive elements might be suitable, but this can only be decided after evaluating the project's characteristics. Selecting a predictive life cycle prematurely might be inappropriate if many requirements are still unclear. Registering all requirements in a backlog is a good step but comes after deciding on the overall approach. Splitting requirements into two projects is an extreme measure that should only be considered after a life cycle decision proves it necessary or beneficial.