Browsing by Author "Ratnajeewa, D.R."

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Analysis of the Impact of Lean Manufacturing Practices on the Operational Performance of Pharmaceutical Manufacturing Industry
(Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka, 2016) Ratnajeewa, D.R.; Liyanaarachchi, B.P.T.
The objective of this research is to analyze the impact of lean manufacturing practices on the operational performance of pharmaceutical industry. Case study method is used and the operational performance of the manufacturing process before and after implementation of lean manufacturing is measured. Hypothesis testing was done to find out whether there is a significant change before and after implementation of lean manufacturing. Data was collected from the system on wastage and downtime for eleven months including pre-implementation and post-implementation. The t-test was used for analysis and hypothesis was tested at 95% confidence level using SPSS. Findings show that there is a significant improvement between the mean bulk wastage, jar wastage mean value, mean batch change over downtime, mean label reel change over downtime and total mean downtime before lean manufacturing implementation and afterwards (p<0.05). Therefore, it can be concluded that there is a significant improvement of operational performance after implementation of lean manufacturing and further implementation of lean manufacturing practices for other pharmaceutical organizations is recommended.
Impact of logistics processes on supply chain facilitative role in dairy industry in Sri Lanka: A Thematic Analysis
(3rd International Conference for Accounting Researchers and Educators - 2017, 2017) Silva, S.S.S.; Ratnajeewa, D.R.
Globally, supply chain and logistics have become main indicators to achieve performance developments. The dairy industry plays a key role in agro business as it provides significant contribution towards the economy of Sri Lanka. The industry is spread over a wide range, starting from small dairy farmers in rural areas through supply chain flow including collecting, processing, transporting and storing. Many difficulties can arise in different situations in the supply chain of the dairy industry, especially milk collection, transport of milk from farms to operational stations or plants. Therefore, this research was conducted on issues of operational performance in dairy industry. The main purpose of the research was to identify the impact of logistics process towards the supply chain facilitative role in dairy Industry in Sri Lanka. Additionally, this focuses on identifying the effective process in collection, processing system and supplier connectivity. This study was conducted with ten companies in Colombo and sub areas, selected using the purposive sampling method. The research was done as a qualitative study; a thematic analysis. Ten dairy companies were selected in different scale, opportunities and environments. Through the analysis it can be concluded that key logistics functions have a greater impact on supply chain facilitative role while optimizing the operational performance. While the majority of the participants interviewed expressed certain negative comments about problems in dairy industry, almost all considered in this study have taken steps to reduce the negative aspects and issues as much as possible, but with more strategies to be implemented further.
Impact of Using Green Practices on Sales Volume of the Apparel Industry in Sri Lanka
(Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka, 2016) Ratnajeewa, D.R.; Jinadasa, A.
The primary objective of this study is to identify the relationship between implementing green practices and its effect to the sales volume in the apparel sector. The sample of the study has been selected from Colombo district and was based on convenience sampling method. The sample size was 20.Primary data was obtained through a questionnaire developed after an extensive literature review and by conducting interviews. SPSS was used for data analysis. ANOVA table was obtained and KMO test and Reliability test were performed. Findings stated that, there is a positive relationship between certain green practices and sales volume. But not with all four main functions considered which are procurement activities, manufacturing activities, transportation activities and consumer care activities. Further the study has found that manufacturers are not interested in undertaking green practices since it is not a mandatory requirement by the law.
Implementation of a Cross Docking System to Coca Cola Beverages Sri Lanka
(Faculty of Commerce and Management Studies, University of Kelaniya, 2015) Sanjeewa, H.K.A.C.; Ratnajeewa, D.R.
The Coca Cola Beverages Sri Lanka Limited is a leading multinational carbonated soft drink manufacturer in Sri Lanka. It is involved in almost the entire supply chain process; from manufacturing to distribution. Therefore use of proper supply chain management practices is essential. Warehousing and distribution which is a main part of the supply chain plays a vital role in its operation. Since all the finished goods have to be delivered to distributors around the country, its transportation cost is considerably high. The aim of this research is to reduce transportation cost by implementing the supply chain management concept of cross docking. Secondary data collected from company records and systems were used for the analysis. The current transportation cost and the transportation cost through the cross docking center is calculated and analyzed through a comparison. Then a cost benefit analysis is done to analyses the feasibility. Through the analysis it is concluded that it is feasible to use the concept of cross docking and many additional benefits which include time saving, better service levels and reduction of contribution to the carbon foot print. Finally recommendations are given to establish and carry out the cross docking operations.