William, a project manager, needs to prepare the budget for a new software development project. To do so, he takes inputs from other managers who have worked on similar projects in the past. After estimating the overall project cost, he gives the estimates to his team members so that they can split up the cost of each individual task involved in producing the required deliverable. In this scenario, William is using _____. William, a project manager, needs to prepare the budget for a new software development project. To do so, he takes inputs from other managers who have worked on similar projects in the past. After estimating the overall project cost, he gives the estimates to his team members so that they can split up the cost of each individual task involved in producing the required deliverable. In this scenario, William is using _____. top-down budgeting bottom-up budgeting agile project budgeting dynamic matrix budgeting