Costs that are associated with time devoted to the coordination in meetings and briefings as well as time necessary to resolve disconnects between tasks are known ascosts. direct interaction general and administrative $($G&A$)$ overhead costs things gLlkkklProject managers typically use $..-,$ also called analogous estimating or the $\_$ method when thereis a past history of similar projects and rough$-$cut estimates are needed for strategic purposes two$-$to$-$five years out because, as estimating methods go$,$ it is faster and less expensive. top$-$down, apportionO bottom$-$up$,$ range estimating bottom$-$up$,$ learning curve top$-$down, phase estimating top$-$down, range estimating