THE EFFECT OF PRODUCTION PLANNING AND CONTROL ON PRODUCT QUALITY: A STUDY OF INTERNATIONAL BREWERIES IN ILESA, OSUN STATE

Abstract

This study investigates the effect of Production Planning and Control (PPC) on product quality at International Breweries Plc in Ilesa, Osun State. The study focuses on three key PPC components: material requirement planning, scheduling system, and product inspection. The study employed cross sectional survey design. The study population comprises 1553 staff working at the manufacturing plant of International Breweries Plc, Ilesa. A sample size of 318 was determined using Taro Yamane's formula. Online survey was designed to collect data from the respondents. A total of 231 responses were retrieved and analyzed using multiple regression analysis. The results indicate that all three PPC components have a positive and statistically significant impact on product quality. Specifically, Product Inspection exhibited the most substantial effect, followed by the Scheduling System and Material Requirement Planning. These results suggest that investments in strong PPC mechanisms can lead to significant improvements in production outcomes, reinforcing the importance of continuous optimization of PPC processes. The study concludes with recommendations for International Breweries Plc and similar organizations to enhance their PPC practices, thereby improving product quality and customer satisfaction.