Indonesia Conference Directory

Introduction : Companies can survive and develop in the future are companies that can take advantage of change and create value added for all stakeholders. Several studies prove that companies that have a lean process in all parts of the organization will create value added for organizations and customers, increase competitiveness, lower operating costs, and more resilience to external pressure. In carrying out the ship repair business, Yasa Wahana Tirta Samudera (YWTS) Shipyard has the goal of continuously improving the quality of their service, so that by doing so, YWTS could achieve efficiency and effectiveness in term of cost. Finding : In the current state, YWTS main problems are stagnation in Operating Profit Margin from 2015, second, a decrease in cash and cash equivalents from 2015, and a decrease in Inventory Turnover(ITO) from 15.6 in 2015 to 8.94 in 2018. METHOD : The problem-solving process in this system will use the Theory of Constraint method as an analytical framework, while this method also identifying, analyzing, and removing constraints that limit the companys value-added processes. In the process of solving problems, the author needs to analyze the main causes of the problem using the Current Reality Tree (CRT) diagram. The cause of the main problem chosen is the one which has a contribution value of 80% of the overall problem in the System (Undesirable Effect). Those main causes are silo thinking, lack of cost control system, and recapitalization of the document (Opname Pekerjaan and other documents) are not using computerized yet. Then, using Evaporating Cloud diagram, a lean strategy is proposed to eliminate the cause of the problem. Furthermore, Future Reality Tree (FRT) diagrams will give a description of the Desirable Effect, namely growth in Operating Profit Margin (OPM) and an increase in cash and cash equivalents. These goal revealed to be a medium-term action plan designed using the Transition Tree (TRT) diagram. RESULT & CONCLUSION : The result from this research is generate lean strategy that contains 5 ultimate program which can be implemented by company to increase their performance. Their programs are, "Development of visual management control and improvement community", "Development of software and computer-based system", "Development of material management”, “Development of cost center system”, and “Development of competency, skills, and knowledge”.