Value Stream Mapping

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A value stream map is an analytical tool for material and information flow. Impact Washington’s value stream mapping training equips manufacturers with the skills and tools necessary to study the business and manufacturing processes, develop measurable targets, and select priority areas for improvement.

Value stream analysis or mapping requires five days and a cross-functional management and supervisor team of 7-10 people. They should be totally devoted to the team for the whole 40-hour duration of the VSM workshop.

Value stream mapping training will cover the following areas:

  • People travel
  • Information travel
  • Workplace Organization (5S, Visual Controls, POUS)
  • Changeover time
  • Overall Equipment Effectiveness (OEE)
  • Work-In-Process (WIP) Inventory
  • Lot size
  • Just-In-Time
  • Pull Systems and Kanban
  • Flow
  • Throughput time
  • Value-Added vs. Non Value-Added Time
  • Standard Work

The mapping process for each division will consist of two stages. The first stage is to identify the current state, including capabilities, constraints and material flow. Stage two consists of identifying resources, efforts and strategies to move from the current state to an improved future state.

Current State VSM

Current state mapping identifies all activities (both value-added and non value-added) currently required to transform raw materials into finished goods. In most cases, it relies on a Push System, based on scheduling and forecasts. Current State VSM:

  • Analyzes current situation
  • Helps visualize flow
  • Shows linkage between material flow and information flow
  • Identifies “waste” or non value-added activities
  • Forms the basis of a future implementation plan (Future State VSM)

In value stream mapping, the existing production process is observed and mapped. The current state VSM shows graphically how long it currently takes something to get completed using existing techniques on the day that the observation took place. Everything contributing to the overall time in the process is classified as either value-added or non value-added time.

After the development of the current state VSM, decisions on how to proceed with process improvements are based on the value derived from achieving the future state.

Future State VSM

Future state VSM describes how the facility should operate in order to reduce or eliminate the identified waste, and create flow based on a Pull System. Pull System is a method of controlling the flow of resources by replacing only what has been consumed by customers or a downstream process (demand).