Sequence step algorithm

{{Short description|Computer Algorithm}}

{{Use dmy dates|date=June 2023}}

{{more citations needed|date=December 2022}}

A sequence step algorithm (SQS-AL) is an algorithm implemented in a discrete event simulation system to maximize resource utilization.{{Cite thesis |title=The Sequence Step Algorithm A Simulation-Based Scheduling Algorithm for Repetitive Projects with Probabilistic Activity Durations. |url=http://deepblue.lib.umich.edu/handle/2027.42/62300 |date=2009 |degree=Thesis |language=en-US |first=Chachrist |last=Srisuwanrat|hdl=2027.42/62300 }} This is achieved by running through two main nested loops: A sequence step loop and a replication loop. For each sequence step, each replication loop is a simulation run that collects crew idle time for activities in that sequence step. The collected crew idle times are then used to determine resource arrival dates for user-specified confidence levels. The process of collecting the crew idle times and determining crew arrival times for activities on a considered sequence step is repeated from the first to the last sequence step.{{Cite web |date=2007-10-24 |title=The Investigation of Lead-Time Buffering under Uncertainty Using Simulation and Cost Optimization |url=http://iglc.net/conferences/2007/folder.2007-06-29.2095743756/Srisuwanrat%20Ioannou_%20The%20investigation%20of%20lead%20time%20buffering%20under%20uncertainty%20using%20simulation.pdf |access-date=2023-06-19 |archive-date=2007-10-24 |archive-url=https://web.archive.org/web/20071024033354/http://iglc.net/conferences/2007/folder.2007-06-29.2095743756/Srisuwanrat%20Ioannou_%20The%20investigation%20of%20lead%20time%20buffering%20under%20uncertainty%20using%20simulation.pdf |lang=en |author1=Chachrist Srisuwanrat |author2=Photios G. Ioannou}}