Which of the following dependencies indicates software installation can only proceed after desktops are installed?

The dependency matrix is a tool used in project management to identify and illustrate the relationships between tasks and activities within a project. It specifies which tasks are dependent on the completion of others before they can begin, providing a clear visualization of the sequence of events necessary for project execution.

In this context, the dependency matrix indicates that the installation of software cannot proceed until the installation of desktops is complete. This reflects a specific relationship where one task is contingent upon the successful completion of another, which is essential for project planning and ensuring that resources and schedules align appropriately.

The other options do not serve the same purpose as the dependency matrix. An issue log tracks problems and challenges that arise during the project, while a change request log documents any modifications needed in the project scope or execution. The project schedule outlines timelines and milestones, but it does not clearly express the relationships between tasks in the same way that a dependency matrix does. Therefore, the dependency matrix is the most appropriate tool for this indication of task relationships.