Final answer:
The statement is true; in the project definition phase, planners identify how to accomplish the work and organize the project, and this is critical for project success.
Step-by-step explanation:
In the project definition phase, project planners indeed identify the tasks needed to accomplish the work and how to organize for the project. This phase is critical to the success of the project as it involves defining the problem, understanding the scope, establishing criteria and constraints, and planning the detailed design. Implementing a project without careful planning can result in failure, and hence, the project definition phase acts as a blueprint for the objectives to be achieved. It emphasizes the need for achievable and appropriate goals, along with the flexibility to adapt as the project progresses.
The process includes developing a detailed design from the concept which occupies a significant amount of time and greatly impacts the project's outcome. The project's success depends on the proper definition of tasks, deadlines, and responsibilities, as missing a deadline can have severe consequences. Moreover, planners use heuristics such as breaking large goals into a series of smaller steps to manage complexity and ensure progress.