In project management, what document outlines all necessary tasks in detail?

The work package document is essential in project management as it details all necessary tasks involved in a specific portion of a project. It breaks down tasks into smaller, manageable units that contribute to the overall project objectives. This level of detail is crucial for scheduling, resource allocation, and ensuring that teams understand their specific responsibilities. By outlining tasks explicitly, the work package document facilitates better tracking and control of project activities.

The other options serve different purposes. A timeline provides a schedule of when tasks need to be completed but does not detail the tasks themselves. A work breakdown structure (WBS) organizes and defines the total scope of the project by breaking it down into smaller components; while it helps in visualizing tasks and deliverables, it does not offer the exhaustive detail that a work package document does. The scope statement defines the project's boundaries and deliverables but does not list tasks in detail, focusing instead on the project's overall goals and objectives.