Value Stream Mapping (VSM)

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Value Stream Mapping (VSM) 

Value Stream Mapping (VSM) in lean:

Value stream mapping is a popular lean manufacturing tool.

Value-stream mapping, also known as material- and information-flow mapping.

It is used to analyze the flow of materials and information required to produce a product or service from start to finish.

It is a flow diagram of every step of a process which is used to identify waste, reduce cycle times, and implement action plan for improvement.

Value Stream Mapping (VSM) is a visual representation of a process to identify waste and opportunities for improvement.

Why Value Stream Mapping (VSM)?

The objective of value stream mapping is to identify opportunities for improvement and to eliminate waste in the process.(7 Wastes of Lean: Transportation, Inventory, Motion, Waiting, Overproduction, Over-processing, and Defects).

The value stream map indicates what the process is ? It shows all of the steps in the process, including the inputs, outputs, and cycle times for each step. 

Value Stream Mapping shows the linkage between material flow and information flow including inventory levels, lead times, and key performance indicators (KPIs) for each step.

Value Stream Mapping of the current state is used  to identify opportunities for improvement. 

Value Stream Mapping helps to visualize the flow rather than single process.

Value Stream Mapping helps  to visualize the sources of waste rather than the waste.

Value Stream Mapping makes the decisions about process flow and forms the basis for planbing

Value-stream mapping is a blueprint for lean implementation.


Stages involved in Value Stream Mapping Process  (VSM) :

Step 1) Current State Map: 

Current process of material and information flow.

Step 2) Analysis: 

Identifying "bottlenecks" or "waste"(muda).

Step 3) Future State Map: 

Designing an ideal version of the process.

Step 4) Action Plan:

Implementing changes to achieve that future state.

Examples of VSM :

1)Identifying steps taking longer time or non value added steps or the process that create excess inventory. Value Stream Mapping can then develop and implement a plan to streamline the process resulting in the reduced cycle times, and waste elimination.

2) When the man is idle for longer time in contineous streamline process, then he can be trained and assigned in module by making machine modules to utilize the idle time. Thus reduced excess manpower cost.

3) By analyzing bottlenecks in process, parallel machine can be used to remove bottlneck in operations and hence improved productivity.

4) Value Stream Mapping helps in improved productivity of processes and increased employee morale by identifying and removing wastes incurred at actual work area with small improvements also.

Location: India

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