Calculate the cycle time efficiency of the attached process model of IT Help Desk unit of a company, which handles requests of the users who are employees of the same company. Cycle times and processing times of the activities are given in the table below. Branching probabilities of the outgoing arcs of XOR-split gateways are given in the model within parentheses. You should show how you calculate overall cycle time, theoretical cycle time and cycle time efficiency.

Cycle time (min) 5 70 125 20 Process time (min) 5 10 5 20 1205 5 Activity Enter request data Assess request Resolve known request, notify employee Evaluate request Assign priority level Research request Develop resolution Fetch and forward resolution Test resolution Resend request Change status 120 120 20 20 1220 20 10 1210 2 2 5 5