الفهرس 
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Abstract
A lean thinking principle is an applied methodology of scientific, objective techniques that cause work tasks in a process to be performed with a minimum waste of non-value adding activities. It has been increasingly adopted as a potential solution for many organizations, particularly within the automotive and aerospace manufacturing industries. Surveys have shown that the lean integration of the supply chain and the elimination of waste within the upstream supply chain management lead to significant cost savings and benefits.
The objective of this report is to use a case-based method to demonstrate how lean manufacturing principles when used appropriately, can help the industry to eliminate waste, improve productivity and product quality, reduce lead time and obtain better overall operational performance.
This work addresses the implementation of lean principles in a manufacturing company with a focus on creating a process flow. With the objective of improving the manufacturing process to eliminate waste on the shop floor, this report describes benefits of implementing the lean tools such as the value stream mapping (VSM), process flow, total preventive maintenance, quick changeovers, visual management, statistical process control in order to map the current state of a production line and design a desired future state.
The implementation method depended on the three main steps as follow:
• Step One: constructing the current value stream map in order to visualize the non-value¬added activities.
• Step Two: detailed study of work procedures
• Step Three: reduce the non-value added time by implementing the lean tools through quick wins Kaizen events.
The Implementation results in a real case food manufacturing facility showed a great improvement in lead time saving, process time saving, reducing the work in progress, increasing lines productivity, work space utilization, raw material inventory reduction, decreased quality defects and improved process capability and savings in changeovers times up to 50%.