http://hdl.handle.net/123456789/6 2026-04-04T15:09:15Z 2026-04-04T15:09:15Z Zerfu, Tewabe http://hdl.handle.net/123456789/8821 2026-03-16T08:05:40Z 2025-05-01T00:00:00Z

Title: EVALUATING STATISTICAL PROCESS CONTROL TOOLS: THE CASE OF BELAYAB CABLE MANUFACTURING PLC Authors: Zerfu, Tewabe Abstract: This study aims to evaluate the application and effectiveness of Statistical Process Control (SPC) tools in enhancing quality and operational efficiency at Belayab Cable Manufacturing PLC, a key player in Ethiopia's cable production industry. As global competition and customer expectations continue to rise, manufacturers are increasingly turning to SPC as a data-driven approach to monitor, control, and improve production processes. Using a descriptive research design, this study employed both quantitative and qualitative data collection methods, including structured questionnaires and interviews with quality control personnel, supervisors, and production staff. The research focused on identifying which SPC tools are currently in use—such as control charts, histograms, Pareto diagrams, and cause-and-effect diagrams—and assessing their impact on reducing process variability and improving product quality. Findings reveal that while awareness of SPC concepts is moderately high among employees, the practical application of these tools is inconsistent and often limited to basic control charts. Factors such as inadequate training, lack of management commitment, and insufficient data infrastructure were found to hinder full-scale implementation. Nonetheless, statistical analysis indicates a positive correlation between the use of SPC tools and improvements in defect rates, process stability, and customer satisfaction. The study recommends enhancing employee training programs, integrating SPC into daily production monitoring, and adopting a more strategic approach to quality management. These steps are expected to maximize the benefits of SPC and drive continuous improvement in the manufacturing process.

2025-05-01T00:00:00Z HAILU, HABTAMU http://hdl.handle.net/123456789/8820 2026-03-16T08:02:51Z 2025-06-01T00:00:00Z

Title: THE INFLUENCE OF WASTES ON OPERATIONAL PERFORMANCE: THE CASE OF WONJI/SHOA SUGAR FACTORY Authors: HAILU, HABTAMU Abstract: This study investigates the influence of waste on the operational performance of the Wonji/Shoa Sugar Factory, driven by the problem of inadequate waste management which leads to production inefficiencies, increased costs, environmental hazards, and safety risks. A mixed research approach employing descriptive and explanatory research designs was used to explore this issue. The study targeted a population of 2,145 employees, from which a sample size of 338 respondents was determined using Yamane’s formula. Data were collected through questionnaires and structured interviews with managers, and analyzed using SPSS version 24, employing descriptive statistics, correlation, and regression analysis to identify relationships between waste practices and operational outcomes. The findings revealed that poor waste management practices, particularly in reduction, reuse, recycling, collection, and disposal, negatively impact factory productivity, compliance, and efficiency. Regression analysis confirmed statistically significant relationships between waste management dimensions and operational performance indicators. The study concludes that effective waste handling is essential for improving productivity, operational sustainability, and regulatory compliance. It recommends that the factory adopt integrated waste management strategies, enhance employee training, and implement lean manufacturing practices to mitigate waste-related challenges and optimize operational performance

2025-06-01T00:00:00Z TESFA, GIRUM http://hdl.handle.net/123456789/8819 2026-03-16T08:00:02Z 2025-06-01T00:00:00Z

Title: THE EFFECT OF ORGANIZATIONAL CULTURE ON THE QUALITY OF CONSTRUCTION PROJECTS: THE CASE OF ELMI OLINDO CONTRACTORS P.L.C., ADDIS ABABA Authors: TESFA, GIRUM Abstract: This study investigates the effect of Organizational culture on the Quality of construction projects, focusing on four key dimensions: leadership, communication, training and human resource development, and shared organizational values and norms. The research centers on Elmi Olido contractors P.L.C., recognizing the vital role of construction quality in ensuring project success and client satisfaction. A quantitative research aproach was employed, using structured questionnaires to collect data from 157 engineering and administrative staff, randomly selected from a total population of 258. Data were analyzed using SPSS version 26 through descriptive statistics, correlation, and multiple regression analysis. The results show that most of organizational culture components have a significant and positive influence on construction quality. Effective leadership enhances motivation and accountability; clear communication reduces errors and improves coordination; and continuous training strengthens technical skills and adaptability. The study concludes that a strong organizational culture secured in human centered practices is essential for delivering high quality construction products. It recommends strengthening leadership capabilities, encouraging open and transparent communication, and cultivating a learning oriented workplace to boost performance and competitiveness in the construction sector.

2025-06-01T00:00:00Z ABEBE, TIHITINA http://hdl.handle.net/123456789/8818 2026-03-16T07:48:13Z 2025-07-01T00:00:00Z

Title: WORKPLACE VIOLENCE AGAINST HEALTHCARE WORKERS:THE CASE OF URBAN HEALTH EXTENSION WORKER IN KOLFE KERANYO SUB-CITY ,ADDIS ABABA Authors: ABEBE, TIHITINA Abstract: Workplace violence is a significant yet under-addressed issue affecting healthcare professionals, particularly Health Extension Workers (HEWs) who operate within community settings. This study aimed to assess the forms of workplace violence, the effects of workplace violence and the availability of reporting mechanisms among urban health extension workers in Kolfe Keranyo Sub-City, Addis Ababa. Using a qualitative approach with phenomenological study design. Data was collected through in-depth interviews from five health extension workers which were selected through purposive sampling method then data was analyzed thematically. Findings revealed that verbal abuse, physical aggression, and psychological intimidation were the common forms of violence, frequently perpetrated by community members, leading to emotional exhaustion, job dissatisfaction, and fear. Despite of the finding of such incidents, participants reported an absence of formal reporting mechanisms, resulting in normalization of violence and reliance on peer support or silence. The study highlights the urgent need for institutional reforms and social work advocacy to establish protective policies, effective reporting systems, and psycho-social support structures for front line healthcare workers

2025-07-01T00:00:00Z