Student Name

Uzair ZahidiFollow

Degree

Master of Science in Data Science

Department

Department of Computer Science

Faculty/ School

School of Mathematics and Computer Science (SMCS)

Date of Submission

Fall 2023

Supervisor

Dr. Imran Khan, Assistant Professor, Department of Computer Science

Keywords

Process Mining, Fabric defects, Knitting, Workflows, Power Automate, Process Discovery

Abstract

Defects in the Knits manufacturing process result in a significant waste of resources and further affect the quality of finished products. These defects occur due to inefficient processes, non-standardized systems, and the inability to track root causes promptly. Reducing the defects in the knitting process can decrease production downtime and manufacturing costs which will increase productivity and revenue.

Process Mining is a very efficient tool that helped in defect reduction by optimizing the overall knitting process workflows. The ability to extract useful information from process logs helps in identifying top defects, their root causes, and process bottlenecks which aid in proactive decision-making. The main phases of Process Mining are process discovery, conformance checking, and process enhancement.

In this paper, a large Knits manufacturing industry was selected as a case study. Process mining methods and techniques were applied to the production log data logs. In Process discovery, process workflows were extracted and visualized, important trends were observed and notable insights were given. These insights included top defects across all categories, products with the most defects, and inefficient parts of the processes.

The recommendations based on the insights were pivotal in the implementation of some improvement and optimization projects for a product range. It not only reduced the number of defects but also decreased the rejection rate by 3.6%.

Document Type

Restricted Access

Submission Type

Research Project

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