In this scenario, due to the lag time required to assimilate new resources, the relationship between required resources and estimated delivery timeframe may even turn negative.
Agile development methodologies are lightweight processes that seek to minimize the time lag between identifying requirements and the delivery of working code.
敏捷开发方法是轻量级流程，追求尽可能减少标识需求与工作代码交付之间的时间延迟。
3
The results of simulation experiments show that the time-lag and routing load will increase along with the increasing of source nodes, while packet delivery fraction .