Which process involves deciding the duration of each task in a project?

The process involved in deciding the duration of each task in a project is accurately identified as sequencing. Sequencing is a critical aspect of project management that not only determines the order of tasks but also involves estimating how long each task will take based on various factors such as resource availability, task dependencies, and project objectives. Establishing the duration of tasks is essential for creating a realistic project schedule, which helps in allocating resources effectively and ensuring timely project completion.

In project management, effective sequencing leads to a clearer timeline and facilitates better coordination among team members. It also aids in identifying the critical path of the project—the longest sequence of dependent tasks that dictate the minimum completion time of the project.

On the other hand, resource allocation relates to assigning available resources to various tasks but does not inherently involve estimating task durations. Task identification refers to recognizing and defining the tasks required for the project, while document testing is focused on verifying project documents rather than project scheduling. Thus, sequencing is the process that directly correlates with determining how long each task will take in a project.