2. Describe, in short, how OR process was improved and how this improvement affected the process metrics (flow time, value added time, waste and % value added time)For the high level value stream map in figure 1, calculate the followinga) Flow timeb) Value added timec) Wasted) Percent value added time , given that % value added time =Value added time / Flow time2. Describe, in short, how OR process was improved and how this improvement affected the process metrics (flow time, value added time, waste and % value added time)Langenbecks Arch Surg (2011) 396:1047–1053 DOI 10.1007/s00423-011-0833-4ORIGINAL ARTICLELean processes for optimizing OR capacity utilization: prospective analysis before and after implementation of value stream mapping (VSM)Patrick Schwarz