Final answer:
Time-based and effort-based methods are used to estimate progress toward completion in project management.
Step-by-step explanation:
Methods that can be used to estimate progress toward completion are referred to as time-based and effort-based methods.
Time-based methods involve tracking the amount of time it takes to complete tasks or milestones, and using that information to estimate overall progress. For example, if a project is estimated to take 100 hours and 50 hours have been completed, the project is 50% complete.
Effort-based methods, on the other hand, focus on the amount of work, resources, or effort expended on the project. This can include counting the number of tasks completed, the number of work hours logged, or the amount of money spent. Using this information, progress towards completion can be estimated.