How companies choose to design their supply chain is important for their competitiveness. Supplier relationships are becoming increasingly important to maintain a market position. A key factor for success is to deliver material in the right quantity, at the right time and to the right place. Other factors that play an important role are quality standards, leadership and above all, customer first. The customer should be placed at the top of the value chain, and be treated with respect. Markets are driven by short lead time and companies cannot rely on brand loyalty. The purpose of this study is to develop a general model for analysis and improvement of the supply chain for manufacturing companies, with focus on components from external suppliers. The model is created based on a literature review and to examine this, the model was tested at Företaget. The empirical data is mainly conducted by interviews, complemented by one observation. The analysis model consists of seven areas based on Supply Chain Management, Logistics and Lean. A key factor to analyze these seven areas is to map the current situation. The results have been filtered through the analysis model and have led to suggestions for improvement. These suggestions are only recommendations and the companies choose what to take further into action. Företaget is one of Sweden’s leading window manufacturers with two strong brands, Produkt 1 and Produkt 2. Most of the production process is carried out in Edsbyn and the size of the factory is as big as ten football pitches at 65,000 squares meters. Wooden-aluminum windows are an increasing trend and stands for two thirds of the sales. The study is focusing on one selected component which is the flow for aluminum profiles. The conclusion shows that supply chain management, logistics and Lean play an important role while building an efficient supply chain. Relationship, communication and information sharing with suppliers are of great importance and needs to be constant developed and improved. Leadership is a key element to get all the areas to work and it is the leaders that characterize the culture of the company. The study has resulted in a number of improvement suggestions for Företaget. One suggestion for improvement is to develop a routine for documentation when a deviation occurs in the final assembly. This will enable the follow-up and help to find the main cause for appearance.

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