A well-defined task includes:

O resources requirements

O resumes of workers

O times and cost estimates

O definition of the deliverables, outputs, or results

O list of the benefits and drawbacks of the task

O persons or groups responsible for the task

Times and cost estimates. Definition of the deliverable, outputs or results. Persons or groups responsible for the task.

Explanation:

A well defined task must include these 3 things:

Times and cost estimates: Creating a task without knowing the time limit it must be completed in, or how much cost would it incur is useless. So there should be some time estimates to which people responsible for the task comply. Definition of the deliverable, outputs or results: A task's outputs should be defined so that those responsible for completing the task may know when to stop working on the task. Persons or groups responsible for the task: The most important aspect of the task is clearing out that who will be the one responsible for the task or if there is any group who would be included in it.