3 M's of Lean

  • Overburden (Muri), unevenness (Mura), and Waste (Muda) are the three enemies of lean.


Will Six Sigma Be Relevant For The Future
  • Muri means utilization of resources beyond their abilities.
  • Muri over a while can result in employee absenteeism, illness, and breakdowns of machines.
  • Ex: A few Engineers overburdened due to a disparity of competency in teams


Will Six Sigma Be Relevant For The Future
  • Mura means unevenness, non-uniformity, and irregularity.
  • Mura is the reason for the existence of any of the seven wastes. In other words, Mura drives and leads to Muda.
  • Example: High inflow of bugs immediately after the 1st production release


Will Six Sigma Be Relevant For The Future
  • Muda means wastefulness, uselessness, or non-value-added step or activity.
  • Value-added work is a process that adds value to the product or service that the customer is willing to pay for.
  • Downtime

Waste in Manufacturing Industry

Will Six Sigma Be Relevant For The Future
Will Six Sigma Be Relevant For The Future

Waste in Service Industry

Will Six Sigma Be Relevant For The Future
Will Six Sigma Be Relevant For The Future

Waste Example
  • - IT/Service tickets going through multiple hands – customer, onsite coordinator, offshore teams (L1, L2)
  • - Ticket containing insufficient information leading to queries and multiple hand-offs
  • - The backlog of Tickets waiting to be worked on
  • - Tickets pending for user clarifications
  • - Seeking information from a colleague (SOP, document, email, etc.)
  • - Engineer searching for information in email/share point sites / calling colleagues
  • - Waiting for completion of predecessor tasks, clarification on requirements
  • - Ticket/Change Request waiting in queue to be attended by assigned engineer
  • - Multiple/Unnecessary reviews of the same ticket to ensure better quality
  • - QC of noncritical parameters
  • - Creating reports no one requires & with no value adds
  • - Providing “Value Adding features” when not required for the customer
  • - Printing counterparty confirmation though it’s available by email
Defects & Rework
  • - Poor documentation & non updated SOP’s
  • - Incomplete documentation (Knowledge Management document not updated)
Non-utilized resources
  • - Not involving the resources which have the critical information
  • - L2 Engineer utilized to perform L1 tasks
  • - L1 Engineer is not utilized to potential

Expert's Comment

  • Simple ways to increase productivity by ~20% in Manufacturing & Service Industry
  • Go through all the eight wastes of Lean.
  • Make a list of all wastes available at your workplace
  • Keep reducingthe waste one by one and start seeing an increasedproductivity