Which term describes the timeframe by which the project should be completed?

The term that accurately describes the timeframe by which a project should be completed is the "Completion timeline." This term specifically refers to the schedule that outlines key milestones and deadlines necessary for the successful delivery of a project. It captures both the overall duration for the project and any significant phases within it, making it essential for project planning and management.

In contrast, the project scope pertains to the boundaries of the project, including the tasks, deliverables, and objectives. While resource allocation refers to how project managers distribute resources, such as labor and materials, throughout the project, it does not indicate when a project should be finished. The implementation phase signifies the stage where the project is carried out rather than the timeline for its completion. Hence, the "Completion timeline" is the most appropriate term for capturing the deadline by which a project must be completed.