While the project is in progress, Rahmah, the Human Resources Manager, has complained that the installation of the wireless network is too noisy, as contractors are crawling in the ceilings to do their work. Rahmah suggest to move the rest of the wireless installation to weekends when the offices are less busy. This will have an impact on the project in terms of cost, as the contractors need to be paid double rate per day for weekend work. In order to cater to Rahmahs request, and maintain project costs, you are required either to apply lead time or lag time techniques to solve the scheduling issues. Briefly describe and illustrate how the chosen technique could be possible to take care of these two issues