What defines dependencies related to internal project milestones?

The term "internal dependencies" specifically refers to the relationships between tasks or milestones within a project that are dependent on each other due to internal factors. These dependencies arise from the sequencing of project tasks where the completion or initiation of one task relies on the status of another task that is also within the scope of the project.

In project management, understanding internal dependencies is crucial because they help clarify the order in which tasks should be completed, ensuring efficient project execution and resource utilization. For instance, before a development team can begin testing, the coding phase must be completed. This ordering can affect timelines, resource allocation, and overall project deliverables.

The other options represent different categories of dependencies that involve varying contexts or influences. External dependencies relate to events, resources, or results that are outside the organization, while discretionary dependencies involve decisions made by the project team about the order of tasks, which may not be necessary. Physical dependencies refer to physical constraints, such as the requirement for certain equipment or space necessary to complete tasks.