An Analysis of Quality Control on Defective Products at PT. Signore


This research aimed to analyze the damaged products at PT. SIGNORE, Tangerang, Indonesia. A Fish Bone Diagram was drawn to determine the factor that causes defective products. Then, an action plan including the concept of the Five M checklist, 5W + 1H (What, Why, Where, When, Who, How) and seven new tools of the corrective action plan, labor, machinery, materials, methods and environment were developed. The purpose of this study was to analyze the damage to a product because the quality of a product greatly determines customers’ shopping experience and customer satisfaction with the quality standards of the product. The results of this study indicated that defective products usually occur due to poor quality control processes.

Keywords: Quality control, customer satisfaction, cause and effect

[1] Yurim Zagloel T, Ardi R, Poncotoyo W. Six sigma implementation model based on critical success factors (CSFs) for Indonesian small and medium industries. MATEC Web of Conferences. 2018;

[2] Kotler P, Armstrong G. Kotler & Armstrong, Principles of Marketing. Pearson; 2018.

[3] Prabowo FI, Keke Y, Istidjab B. Pengaruh strategi pemasaran dan kualitas pelayanan terhadap keputusan pembelian konsumen di pt sarana bandar logistik. 2021;15(2):75- 82.

[4] Ulfah R, Simarmata J, Keke Y, Amonalisa S, Amin AF. The influence of Service Quality and Customer Trust toward Customer Loyalty: the role of customer satisfaction. Advances in Transportation and Logistics Research. 2020;12(3):639–54.

[5] Nasir MA, Morgan J. Article information. 2017.

[6] Bintarti S, Sumantri P, Wicaksana I, Sari R. the Effect of Product Quality, Product Variation and Promotion Towards the Purchase Decision of Viva. Economic. 2022;11(01):448–53.


[8] Tampubolon MP. Manajemen Operasi \& Rantai Pemasok: Operation and Supplychain Management. 2015.

[9] Magar VM, Shinde VB. Application of 7 quality control (7 QC) tools for continuous improvement of manufacturing processes. International Journal of Engineering Research and General Science. 2014;2(4):364-371.

[10] Neyestani B. Seven Basic Tools of Quality Control: The Appropriate Techniques for Solving Quality Problems in the Organizations. 2017.

[11] M. COCCIA. The Fishbone diagram to identify, systematize and analyze the sources of general purpose technologies. Journal of Social and Administrative Sciences. 2017;4(4):291–303.

[12] Nurlela RL. Diagram Fishbone Untuk Meningkatkan Kemampuan Menulis Teks Eksposisi Siswa Kelas Viii Smpn 2 Cihampelas. Jurnal Teknodik. 2021;25(1):13.

[13] Xiulia L, Baozhia C, Hanqingb X. Study on Principle of Product Defect Identification. Procedia Eng. 2012;43:393–8.

[14] Mowen JC, Ellis HW. The product defect: Managerial considerations and consumer implications. Review of Marketing. 1981;158–172.

[15] Ginting R, Fattah MG. Production quality control with new seven tools for defect minimization on PT. Dirgantara Indonesia. IOP Conf Ser Earth Environ Sci. 2020;452(1):12082.

[16] Miru A, Yodo S. Hukum Perlindungan Konsumen, Revisi cetakan 9. Jakarta: PT Rajagrafindo Persada; 2015.

[17] Purushothama B. 4 - Internal quality audits: A strong tool for quality management. Presented at the (2010).

[18] Simanová L, Gejdovs P. The Use of Statistical Quality Control Tools to Quality Improving in the Furniture Business. Procedia Econ Finance. 2015;34:276–83.

[19] Kent R. “Chapter 7 - Tools for quality management and improvement.,” Presented at the (2016).