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Elements and Performance Criteria

1. Identify the system constraint (bottleneck)
   • Identify desired output from process/system.
   • Determine throughput of process/system steps.
   • Identify capacity constrained resource (bottleneck).
   • Confirm maximum/optimum throughput for this capacity constrained resource.
2. Manage capacity constrained resource (drum)
   • Determine required time buffers for capacity constrained resource.
   • Translate time buffer into physical buffers, as appropriate.
   • Establish required buffers.
   • Examine capacity constrained resource to ensure optimum use of capacity.
3. Determine schedule based on capacity constrained resource
   • Implement supply schedule appropriate for capacity constrained resource.
   • Determine delivery schedule based on capacity of capacity constrained resource.
   • Compare delivery schedule with externally required delivery rate and take action.
4. Examine operation of system/process
   • Determine throughput of process/system steps.
   • Identify any additional/new capacity constrained resource.
   • Take action.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Competitive systems and practices include one or more of:

lean operations agile operations preventative and predictive maintenance approaches statistical process control systems, including six sigma and three sigma Just in Time (JIT), kanban and other pull-related operations control systems supply, value, and demand chain monitoring and analysis 5S continuous improvement (kaizen) breakthrough improvement (kaizen blitz) cause/effect diagrams overall equipment effectiveness (OEE) takt time process mapping problem solving run charts standard procedures current reality tree.

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include the ability, for at least one (1) constrained process, to:

identify capacity constrained resource (bottleneck) in own work area

manage capacity constrained resource (drum)

determine schedule based on capacity constrained resource.

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Knowledge Evidence

Must provide evidence that demonstrates knowledge relevant to their job role sufficient to fulfil their job role independently, including:

theory of constraints

concepts of weakest link (often colloquially known as the drum)

duration (in production applications this is often known as material release buffer or inventory to protect the weakest link/constraint)

release timing of buffer (colloquially called ‘rope’)

processes, products, internal and external customers for own work area.

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