Research on Integration of Project Schedule Buffer and Cost Buffer Based on Key Chain

Traditional Key Chain (CC) technique encounters problems, such as the limit of application field of CC and the imperfectness of buffer management mechanism. Firstly, in this paper, CC is applied to cost management and integrated model of schedule buffer and cost buffer is made; Secondly, buffer management mechanism of schedule and cost is established to scrutinize synchronously the state of project schedule and cost; Finally, integrated buffer trend of schedule and cost is depicted to be used as an effective tool to control project schedule and cost.