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Multifunctional workers are another way to bring flexibility to the work environment. At Honeywell’s heating and cooling controls plant, workers are trained to operate all the machines on their work line. The flexibility that comes from multifunctional workers changes the nature of how work gets done. Instead of workers being trained on one machine and working independently of one another, multifunctional workers have a “big picture” view of the production line, where every worker understands all aspects of the line and how to work together to meet quality and schedule goals regardless of the circumstances.

Line/cellular flow layouts

Earlier in this chapter, we described the efficiencies that repetitive process layouts provide. Repetitive process layouts are perfectly suited for driving out non-value-added activities and transitioning to a JIT environment. Intermittent layouts feature dozens or even hundreds of different paths through the facility. They are filled with complexity, uncertainty, and low visibility. Workers tend to have specialized skills, work independently of other departments, and have little sense of “ownership” of the products they work on.

In contrast, cell layouts promote JIT goals by featuring unidirectional product flows, high visibility, and fast throughput times. Workers with multifunctional skills are assigned to individual cells and have responsibility and control of the products they produce. Workers in a cell environment tend to have a greater sense of ownership and pride in their work because they have a “big picture” view of the product as it is converted from raw material to a finished good. This deeper understanding of the production process increases the opportunities for workers to contribute ideas for process improvements.

Total quality management

TQM was discussed in detail earlier. TQM goes hand in hand with the JIT philosophy because quality is a major source of uncertainty and non-value-added activities in an organization with poor quality practices. TQM promotes continuous improvement, doing it right the first time, designing quality into products and processes, and establishing an overall focus on prevention as the primary quality activity.

Employee empowerment

Front-line employees play a critical role in successful JIT practice. They work in partnership with management and each other in the continuous pursuit of excellence. There are several ways in which front-line employees contribute to JIT success:

  • Employees work together in problem-solving teams to gather data and build consensus on how to improve work processes.
  • Employees are responsible for understanding the quality measures of their work and what they need to do to meet the needs of internal and external customers.
  • Each employee is empowered to take action to correct problems.
  • Employees have cross-functional skill sets that allow them to be assigned to areas which need help, and to help them adopt a broader (“big picture”) view of the production process.
  • Unlike a traditional “push” environment where line workers are relatively independent of one another in their work activities, JIT employees are connected by the “demand pull” discipline, where work is not produced unless the downstream work center needs it. Demand-pull promotes the inter-connectedness of workers.
  • Front-line employees are responsible for the basic maintenance of their machines. This helps employees have a better understanding of the condition of their equipment and its ability to meet quality and production requirements.

Management works with employees by being coaches and facilitators rather than authoritative supervisors. Managers are charged with hiring employees who can work in a proactive team environment, and provide the training and incentives to build a work culture that is focused on continuous improvement.

Conclusion: the evolution of jit into “lean operations”

The JIT philosophy has evolved from a manufacturing-focused management approach to a set of management principles that can be applied to any organization. “Lean operations” is a term that is replacing JIT, especially in service environments. “Lean operations” captures the true essence and power of how a culture built around continuous improvement and the pursuit of value-added activities leads directly to competitive advantage in the marketplace. Lean operations is a management philosophy for any organization to achieve higher quality, increased productivity, improved delivery speed, greater responsiveness to changing markets, and increased customer satisfaction.

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Source:  OpenStax, Business fundamentals. OpenStax CNX. Oct 08, 2010 Download for free at http://cnx.org/content/col11227/1.4
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