Adopting Discrete Wavelet Transformation with Mean Time Between Failure to Design a New Quality Control Chart

Authors

DOI:

https://doi.org/10.24086/cuesj.v9n1y2025.pp47-51

Keywords:

Quality control, individual observation chart, reliability, mean times between failure, discrete wavelet transformation

Abstract

This study’s goal was to design a new individual observation chart for quality control by utilizing the discrete wavelet transformation (DWT) approach to calculate the mean time between reliability failures. The new chart’s effectiveness was demonstrated by comparing it to a classical chart. This aspect is crucial in addition to the conclusion that the production process is under control for both charts, with the new chart exhibiting a reduced standard deviation. The study’s main focus was on a new area for device monitoring and defect detection, which involves halting production and eliminating any potential causes of defects. One of the main elements that aid in achieving the goals of predictive maintenance is the individual control chart based on the mean time between failures with DWT of the operating time between failures.

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Author Biographies

Hawkar Q. Birdawod, Department of Business Administration-Cihan Universt-Erbil, Kurdistan Region, Iraq

Howkar Birdawod is an assistant prof. at the  Department of Business Administration-Cihan Universt-Erbil, Kurdistan Region, Iraq. His research interests are image processing and apply statistics

Dlshad M. Saleh, Department of Statistics and Informatics, College of Administration and Economics, Salahaddin University-Erbil, Kurdistan Region - F.R. Iraq

Dlshad Mahmood Saleh is a full-time lecturer at Salaheddin University-Erbil's Department of Statistics and Informatics at the College of Administrative and Economics. His research interests are Penalized regression, Discrete Wavelet Transformation, and Quality Control.

Dashty I. Jamil, Department of Accounting, Cihan University-Erbil, Kurdistan Region, Iraq

Dashty I. Jamil is  currently serves as Head of the Accounting department at Cihan University-Erbil, Kurdistan Region, Iraq. His research interests include  Penalized regression, Artificial Intelligence and Biostatistics, and Quality Control.

AbdulRahim K. Rahi, Department of Business Administration, College of Administration and Economics, Al-Ameen University Baghdad, Iraq

AbdulRahim K.Rahi holds ph.D. in Statistics and Operations Research. He is affiliated with Al-Ameen University, College of Administration and Economics, Department of Administration. His research interests include Operations Research, Stocastic process, Quality Control.

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Published

2025-05-10

How to Cite

1.
Birdawod HQ, Saleh DM, Jamil DI, Rahi AK. Adopting Discrete Wavelet Transformation with Mean Time Between Failure to Design a New Quality Control Chart. Cihan U Erbil SCI J [Internet]. 2025 May 10 [cited 2026 Jun. 19];9(1):47-51. Available from: https://journals.cihanuniversity.edu.iq/index.php/cuesj/article/view/1435

Issue

Section

Research Article

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