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You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation. This is a human-readable summary of (and not a substitute for) the license. Disclaimer Master's Thesis Process Mining-driven Performance Analysis in Manufacturing Process: Cost and Quality Perspective Tu Thi Bich Hong Department of Management Engineering Graduate School of UNIST 2016 i Process Mining-driven Performance Analysis in Manufacturing Process: Cost and Quality Perspective Tu Thi Bich Hong Department of Management Engineering Graduate School of UNIST ii Abstract The dynamics of globalization and high expectation of customers make manufacturing enterprise move towards three primarily competitive factors, namely, time, cost, and quality. The desire for continuous performance improvement of manufacturing processes is as old as manufacturing itself.
However, the latest industrial revolution Industry 4.0 and the digital revolution have opened up new avenues, intertwined information systems and the operation processes. As a result, enterprises face a challenge in extracting value from a massive amount of events recorded by today‟s information systems. Process mining is well recognized as a valuable tool for observing and diagnosing inefficiencies in business processes based on event data. It turns out that process mining is a viable solution to this challenge.
Nevertheless, significantly less attention has been paid on investigating cost and quality perspective in process mining. In these respects, this thesis suggests a framework for performance analysis in manufacturing processes based on process mining. The proposed approach focuse on cost and quality perspective. Specifically, the contributions of this thesis are in four-fold (i) to suggest a method to extend event log of manufacturing process with manufacturing information, i.
cost, quality; (ii) to analyze manufacturing information, i. cost, quality with process model; (iii) to utilize various existing process mining techniques and develop new approaches to analyze and predict manufacturing cost; (iv) and to enable quality report in manufacturing process. Keywords: Process Mining, Manufacturing Process, Performance Analysis, Manufacturing Cost, Quality-related KPIs. Application of process mining in manufacturing.
Cost and quality mining in process mining. Cost-related KPIs. Activity-Based Costing (ABC). Direct material cost.
Direct labor cost. Quality-related KPIs. First pass yield. Performance Analysis in Manufacturing Process.
Extension of event log with manufacturing information. Extension of event log with cost-related KPIs. Cost database model. Event log-extended manufacturing cost.
Extension of event log with quality-related KPIs. Quality-aware Event log. Computation of quality-related KPIs index. Manufacturing information analysis with process model.
Visualization of cost breakdown. Resource utilization cost. Process model-enhanced manufacturing information. Visualization of cost breakdown.
Resource utilization cost. Conclusions & Future Works. Summary of contributions. 50 vii List of Figures Figure 1.
Example of first pass yield caculation. A methodology for performance analysis in manufacturing process. Cost database model for cost model extraction. Event log-extended cost of manufacturing process.
An example of cost analysis with process model. Cumulative cost showing per activity. Remaining cost showing per activity. System architecture of performance analysis.
A system architecture for manufacturing information analysis with process model. A screen shot of cost analysis with process model. A screen shot of cost breakdown analysis. Selection of cost parameter in cost breakdown plug-in.
A screen shot of resource utilization cost plug-in. A screen shot of resource cost distribution per month plug-in. A Screenshot of Cost Prediction. Cost per Case.
47 viii List of Tables Table 1. Fraction of event log……………………………………………………………………… 19 ix List of Algorithms Algorithm 1.