Consider the following production of producing N identical units, which can be modelled using the repetitive project scheduling approach. The data is provided in the following table.
The minimum time buffers between two consecutive activities are given as follows: B1 ¼ 12 days; B2 ¼ 16 days; B3 ¼ 9 days; B4 ¼ 19 days. The indirect cost per day is 32 TL. (a) Draw the WP progress lines diagram and find the optimal schedule with the data given in the table above considering the minimum total cost. (b) Draw the WP progress lines diagram when the resulting schedule lasts for 142 days and report about the net gain for this schedule. (c) Find the earliest due-date and report the net gain.