Browse Definitions :
Definition

Muda, Mura and Muri

Muda, mura and muri are three types of wasteful actions that negatively impact workflow, productivity and ultimately, customer satisfaction. The terms are Japanese and play an important role in the Toyota Way, a management philosophy developed by Taiichi Ohno for creating automobiles on demand after World War II. The labels muda, mura and muri are also used in lean development, an Agile software methodology inspired by the Toyota Way.

Muda, mura and muri provide guidelines for what to avoid in the way of inefficient resource allocation. Recognizing the three types of inefficiencies helps to avoid wasted time, materials, product and human effort.

Muda means wastefulness. Work that does not add value is divided into two categories: work that is necessary but not recognized by the customer as adding value -- and work that simply is not necessary.  The second type of Muda should be identified and eliminated. There are seven wastes recognized in Muda.

Mura means irregularity or a lack of uniformity. Mura is seen to cause Muda. The irregularity in production can result in lost product and wasted time. Under both the Toyota Production System and lean production, Mura should be avoided by selectively adding capacity or otherwise leveling the work load in the production line.

Muri means over worked. Pushing beyond rational workloads can be caused by Mura or by excess removal of Muda. When people or equipment are overworked, they are more prone to failure. In the case of over-worked employees, this can result in reduced productivity, absenteeism and churn.

Other parts of the Toyota Way include Kaizen and the Respect for People Principle.

This was last updated in March 2019

Continue Reading About Muda, Mura and Muri

Networking
  • network management system

    A network management system, or NMS, is an application or set of applications that lets network engineers manage a network's ...

  • host (in computing)

    A host is a computer or other device that communicates with other hosts on a network.

  • Network as a Service (NaaS)

    Network as a service, or NaaS, is a business model for delivering enterprise WAN services virtually on a subscription basis.

Security
  • Dridex malware

    Dridex is a form of malware that targets victims' banking information, with the main goal of stealing online account credentials ...

  • crypto wallet (cryptocurrency wallet)

    A crypto wallet (cryptocurrency wallet) is software or hardware that enables users to store and use cryptocurrency.

  • zero-day (computer)

    A zero-day is a security flaw in software, hardware or firmware that is unknown to the party or parties responsible for patching ...

CIO
  • outsourcing

    Outsourcing is a business practice in which a company hires a third party to perform tasks, handle operations or provide services...

  • chief operating officer (COO)

    A chief operating officer (COO) is the corporate executive who oversees ongoing business operations within the company.

  • project management

    Project management is the discipline of using established principles, procedures and policies to guide a project from conception ...

HRSoftware
  • team collaboration

    Team collaboration is a communication and project management approach that emphasizes teamwork, innovative thinking and equal ...

  • employee self-service (ESS)

    Employee self-service (ESS) is a widely used human resources technology that enables employees to perform many job-related ...

  • learning experience platform (LXP)

    A learning experience platform (LXP) is an AI-driven peer learning experience platform delivered using software as a service (...

Customer Experience
  • market segmentation

    Market segmentation is a marketing strategy that uses well-defined criteria to divide a brand's total addressable market share ...

  • sales pipeline

    A sales pipeline is a visual representation of sales prospects and where they are in the purchasing process.

  • market basket analysis

    Market basket analysis is a data mining technique used by retailers to increase sales by better understanding customer purchasing...

Close