A production system converts raw materials into finished goods by various processes.
The processes could occur parallel in order to reduce the time taken to complete the processes.
Critical path in production systems is the maximum time taken to complete processes occurring
in parallel. Identifying critical paths are important because, in order to improve the cycle time
emphasis needs to be given to the critical path. Critical path is usually a single path in
deterministic processing times. Due to variability more than one path might tend to be critical
within the same system. The initial part of this research focuses on identifying changes in critical
paths in variable processing times and prioritization of paths. Several metrics such as critical
path severity index, all path severity indexes, probability of critical path beyond standard time
are used to identify the criticality of paths. Next, suitable tools are implemented within these
paths in order to improve the probability of completion and reduce the costs due to delay. An
economic analysis for using lean tools within the paths is done. The allocation of improvement
tools is based on the variability of each process and the processing time / Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Industrial and Manufacturing Engineering.
| Identifer | oai:union.ndltd.org:WICHITA/oai:soar.wichita.edu:10057/5180 |
| Date | 12 1900 |
| Creators | John, Mervyn |
| Contributors | Krishnan, Krishna K. |
| Publisher | Wichita State University |
| Source Sets | Wichita State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
| Format | xii, 65 p. |
| Rights | Copyright Mervyn John, 2011. All rights reserved |
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