 |
Value Stream Mapping (VSM) at Work
Value Stream Mapping Definitions - The Value Stream represents the actions taken to bring a product into existence, from the raw material stage to the finished good stage. - It can be extended to the design aspect, from concept to launch. - It can look at the big picture, across different plants or it can be restricted to the operations in one facility, even one department, as a starting point. - The Value Stream Map is a pictorial representation of the flow of material and information as the product is being built. Advantages - VSM helps us visualize better the flow without being limited to the single-process level. - It is a powerful tool in identifying waste. - It forms the basis of an implementation plan. - It shows the linkage between material flow and the information flow. - It provides a common language to talk about manufacturing processes. - It is a communication tool. - It is a business-planning tool. - It is a tool to manage the change process. - VSM helps us see and focus on flow with a vision of an ideal or improved state. The Value Stream Manager - The VSM process needs one person with lead responsibility for understanding a product family’s value stream and improving it, the value stream manager. - The manager should report to the top person on site. Generate the VSM - Choose a product or product family - Depict the customer requirements - Follow the flow of the product from shipping to the raw material stage - Draw the processing steps used to process, move and store the product - Input the process and inventory data - Draw the information flow - Draw a time line depicting the lead time Generate the Future State Map - Calculate the Target (Takt) Time - Produce at your Takt Time - Develop continuous flow wherever possible - Use supermarkets to control production - Determine the pacemaker process - Level the production mix - Level the production volume (Paced withdrawal) - Ability to make every part every day Achieving the future state - Breaking implementation into steps - The pacemaker loop - Additional loops - The Value Stream Plan - Value Stream Improvement
|
