การปรับปรุงห่วงโซ่อุปทานรองเท้ามือสองโดยใช้แนวคิดแบบลีน

Abstract

This research focuses on reviewing used shoes supply chain. In preliminary, reviews on used shoes supply chain from secondary databases and documents were identified. Survey of the chain and interview of stakeholders in the chain were then performed. SWOT analysis of used shoes indicated several weaknesses and threats. However, there were some strengths that can be developed to opportunities. In addition, value chain of this business was analyzed to identify value added. As a result, many activities were found to increase value to the chain, especially, operation activities before remarketing. This included; selecting, washing, repairing and painting which creating value and satisfying customer needs. Those activities could create tremendous value to used shoes according to value chain activity. Furthermore, value changed in each stage of used shoes supply chain was clarified. Supply chain stakeholders achieved different margin. The highest margin appeared among middleman producing 520.17% and the lowest margin was 25.71% in merchants group 1. Subsequently, Value Stream Mapping (VSM) was used to define and analyze processes. This step enabled researcher to find wastes in these processes. Finally, some suggestions and recommend were provided to each stakeholder which can be adopted into improving the process. Value Stream Mapping (VSM) shown the highest activities in used shoes supply chain occupied 52.38% of Value Added Activities (VA). Recommendations from researcher attempt to combine simplify and re-arrange processes. As a result, reducing NVA, NNVA and shortening process time of VA diminished 21.75 hours of total operating time.